LTM4620 – Dual 13A or Single 26A DC/DC µModule Regulator with Integrated Heatsink

The LTM4620 is a dual 13A per output (or single 26A output) DC/DC μModule step-down regulator that delivers up to 100A when four devices are current shared. The LTM4620 is a complete DC/DC regulator system in a 15mm x 15mm x 4.41mm LGA package, including inductors, power stages and all control circuits. For optimum heat dissipation, an integrated top side heat sink removes heat quickly and evenly.[Link]

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Crystal cMoy Freeform Headphone Amplifier

Well the time has come to pour the clear casting resin .I have say I have been putting this off for some time ,but it all turned out well in the end as you can see below :) [Link]

Stunning Crystal cMoy Freeform Headphone Amplifier

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Simple EMF Probe

There’s something fascinating about electromagnetic fields. Thanks to the modern world and the prevalence of electronics and electricity, they’re all around us these days. But because of the extremely limited array of senses that we humans have, we spend most of the time completely oblivious of them. Wouldn’t it be cool to make something simple that could not just detect them, but would allow you look at the waveforms on an oscilloscope. An EMF probe in other words. [Link]


A Very Simple EMF Probe

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I/O Experimenter Board - PCB Version

If you are tired of connecting the same I/O devices every time you prototype a new project then this board could save you a lot of time. All the necessary pins of the devices on the board are accessible through headers that allows easy connection of the board to a breadboard circuit or other development boards (Arduino, etc) using jumper wires. [Link]

I/O Experimenter Board (PCB version)

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USB Function Generator Based on AD9833

One tool that I’ve been missing at my lab at home is function generator. They tend to be a bit expensive, so I haven’t bought one. I thought this might be a good opportunity to try and make one myself. I found a pretty common DDS (direct digital synthesis) chip, called AD9833. Then just strap a USB-enabled AVR micro there and maybe some analog electronics.

USB Function Generator Based on AD9833

This board doesn’t do any of the special analog magic to allow for variable amplitude or offset for the signal. The output is fixed to 0-4v. I’m planning to make another completely analog board for adjusting amplitude and offset. [Link]

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Build Your Own RC Tankbot

Here’s a blog post that will show you the setup you’ll need to make your own do-it-yourself radio controlled (RC) tankbot from the ground up. This example uses a few kits from Solarbotics to build your own RC controller, communication link, and tankbot using minimal parts. We even managed to get 250 feet of range out of the deal!

How to Build Your Own RC Tankbot


For this exploit we invite you to move over to the dark side, as the heart of the project isn’t Xbees but instead 2.4GHz IEEE 802.15.4 Radio Frequency Network modules from Synapse Wireless which are actually super simple to use and configure. This post will merely get you started with building a general RC platform, feel free to modify/hack the system to suite your own diabolical requirements. [Link]

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Apple Launch of iPad Mini & 13" Macbook Pro - Retina Display

It looks like the iPhone 5 wasn't Apple's last big debut in 2012. Apple just sent out invitations to a special event that it's holding next Tuesday, October 23, starting at 10 a.m. PT, presumably to unveil the much-rumored smaller iPad model and a 13 inch MacBook Pro with Retina Display.

Apple sets Oct. 23 Event for Expected Launch of iPad Mini & 13" Macbook Pro with Retina Display

The tagline of the invite is "We've got a little more to show you," and the invitation shows the top of Apple's logo. Apple is holding the event at the California Theatre in San Jose, Calif., just a block away from the courtroom where its major trial with Samsung took place. The invitation confirms a report from AllThingsDigital last week, which claimed the event date would be October 23.

Ipad mini render picture photo
 Since before its very first model of the iPad came out, Apple has been rumored to be working on a smaller version. But expectations that the company would double down on its iPad line have increased, especially after competitors like Amazon and Google began to put out smaller tablets that were a third of the price and brought in critical acclaim.

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Asus PadFone 2 phone-in-a-tablet released with quad-core processor and ICS


The PadFone 2 is not only bigger and faster, it is, combined, lighter than Apple's new iPad, add to that one of the most powerful processors in a smartphone and you're onto a winner.

Asus has unveiled the new PadFone 2 smartphone and tablet hybrid in Milan today running Ice Cream Sandwich and sporting a larger 4.7-inch HD display and quad-core S4 processor.

The PadFone 2 has had a bump in the screen department going up to a Galaxy S3 rivaling 4.7-inches whilst swapping the original OLED panel for an integrated Super LCD which means brighter, sharper and as we've seen in the iPhone 5, a lot thinner.

Under the hood is where things get really impressive however as the PadFone 2 sports Snapdragon's new S4 quad-core processor making it one of the most powerful smartphones on the market. There's 2GB of RAM making sure that no matter what you're doing the PadFone 2 won't even break a sweat.

The camera has been given a massive boost now offering up 13MP along with Full-HD video recording, there's also NFC for those that like their payments wireless and Asus Cloud offering cloud storage across Asus devices with a hefty 50GB at your disposal.

Using a Micro-USB/HDMI hybrid connector the PadFone 2 docks with the station making the transition from smartphone to tablet now instantaneous. What you get then is a 10.1-inch 1280x800 IPS display along with a juice boost of 5,000mAh making sure you won't be running out of power anytime soon.

Coming in 16GB, 32GB and 64GB flavours there's no word on official pricing, but by looking at US pricing expect both smartphone and tablet to be costing roughly iPhone 5 money, which when you think about it, is actually pretty good value. Link

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New GITEX: Christie introduces the new J-series projector range


Christe is a very well known projector manufacturer. The opening of The Atlantic in Dubai was, in fact, done using the company's projectors. They are at Gitex to showcase some of their new products this year.

One of them is the Christie J series range, a compact (in its class) projector solution that combines the best of the company's innovations into one affordable package (if ever these things can be affordable). The most interesting feature of the projector is the Christe Twist, a hardware-based pixel mapping technology that can adjust any image onto the surface it is projecting on, and stitch multiple images into one seamless image. An example is below.

The Christe J series is also fitted with the 3-chip DLP platform along with 22,000 lumens of Xenon brightness to help deliver proper color accuracy and clean, crisp images. The J series comes in various low to high-end models, with the Christe Roadster HD20K-J featured above carrying a price tag of USD 80,000.

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New Liquipel – Make Your Phone Watersafe


Liquipel™ is a revolutionary process that applies a watersafe™ coating to your electronic devices to protect them in the event of accidental exposure to liquids. It is not visible to the human eye, virtually undetectable and Liquipel™ will not compromise the look, feel, and performance of your electronics.

Liquipel™ is a Nano-Coating that is applied though a propriety process. This process starts by placing devices into the chamber of the Liquipel™ Machine. The Machine then removes all the air to create a vacuum, a special formula is then introduced as a vapor. The vapor then permeates the entire device inside and out, Liquipel™ then bonds to the device on a molecular level, leaving your device watersafe™ for years to come.

Check out our GITEX 2012 Trade video coverage to see Liquipel in action. Link

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Simple Flashing LED

The circuit is designed to use very little current to prolong battery life so that it can be left on permanently. A superbright’ red LED is used because this provides a bright flash with a low current.

If you want to use 4.5V supply by connecting 3 Alkaline cells or any other source, change the resistor along with LED from 3.3k to 1k for a better flash.
Note that AA cells will last longer than a 9V PP3 battery 

To flash two LEDs alternatively we have to increase the clock pulse speed to possibly fastest to have exact proper alternation.link

Parts Required:
  1. 100k potentiometer
  2. 10k and 3.3k
  3. 10mF
  4. LED
  5. 555 Timer
  6. 9v Battery

Circuit Diagram:
There are three different modes to flash an LED using 555 Timer
 


and their bread board arrangements
         

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Aluminum iPhone 5 Coming Next Fall

Sources have told BGR the iPhone 5 will indeed be a complete redesign, with an appearance much like the form factor of the iPad 2. The front glass of the next generation iPhone will be connected to an all-aluminum back via a rubberized bezel. The mockup below illustrates what the aluminum iPhone might look like.

iPhone 5 BGR aluminum back
The bezel is said to be made of a similar material to the Apple Bumper cases. Not only would this bezel conceal a completely redesigned antenna system, it sounds like this would help make the iPhone 5 less slippery to hold. After all, the machined aluminum found on the iPad 2 is slick in more ways than one.

BGR is confident the next iPhone will not see the light of day until next fall, which puts the release date approximately one year after the iPhone 4S launch. The days of a summer iPhone release seem to have fallen to the wayside for the time being. When it comes to the cellular antenna, using the rubberized bezel would permit Apple to configure the antenna without needing a large plastic window as is seen on the AT&T and Verizon iPad models. 

It's not clear whether or not the Apple logo would provide a window for additional components such as the Wi-Fi antenna.Link

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Apple releases TV spot for new iPods



Apple has just released a fun commercial to showcase its new line of iPod players and the various colours they come in.

The TV spot titled ‘Bounce’, has a bunch of colourful iPod touch, iPod nano and iPod shuffles er…bouncing to music.

With all that colour and dancing and bouncing, you may forget that Apple’s latest gen line of iPods has some other awesome features. For instance, the fifth gen iPod touch comes with Siri, 4-inch retina display and an A5 chipset. Maybe the next ad will showcase some of these features with less bouncing.link

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Apple iPhone 5 early adopters experiencing issues



Other than the widespread complaints with Maps, slow WiFi, possible lighting leaks and fragile aluminum add to the list.

It has been officially reported that 5 million customers have made a purchase for the iPhone 5 already. Of the users already lucky to have received it, many of them are experiencing some problems. In addition to the bug-ridden Maps application, users have been reporting WiFi connection issues, scuffs and scratches to the aluminum casing and even a light leak around the edge of the white iPhone 5.

Adding to the list, Apple is pulling the plug on the free 20GB of storage space extended to previous MobileMe subscribers, which will make it difficult for some upgraders to back up their iPhone 5 to iCloud.

Slow WiFi
Users are flooding the Apple forums reporting problems connecting to WPA2-protected WiFi networks, with slow connection speeds the most commonly reported.

Fragile aluminum
It looks like the new anodized aluminum casing of the iPhone 5 is quite resistant to scratching, revealing the bare aluminum underneath. There have been widespread claims of scratches and scuffs, even directly out of the box.

Leaking light
Affecting the white iPhone 5 seems to be an issue with a small light leak from the LED backlit shining through a small crack in the edge. Users reported that the flaw is only visible under low-light or completely dark settings. Link

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iPad Mini release date set for Nov 2?


Apple is allegedly sending out invites to the media for a special launch event next Wednesday, leading to the inevitable conclusion that it will be revealing the awaited iPad Mini.

It has long been rumoured that the consumer electronics giant will be releasing a miniature version of itsnew iPadthis year, in response to a string of new and upcoming launches, including the Barnes and Noble tablet and Amazon Kindle Fire 2, which is expected to come equipped with a 8.9-inch screen, or the paradigm-changing Google / Asus Nexus 7.

It was originally believed that Apple would launch the slate alongside its sixth-generation smartphone last month, but the device failed to make an appearance. Then again, it was also reported that the iPad Mini would launch some weeks after the iPhone 5, hence why the rumours have kicked off again.
Tech site the Register reports a November 2 release date, although some critics remain sceptical as Apples late CEO Steve Jobs once famously dissed smaller tablets, claiming that their small screens make them ill-equipped to host applications.

But then again, that was a while ago, so its possible that the firm could have changed its mind (or conjured up a solution to combat the problem). TheiPad Miniis expected to come equipped with a 7.85-inch screen and there were reports earlier in the year of a stylus, too. We're yet to hear of other possible specifications but will keep you updated as and when we do.

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New Samsung Galaxy S4 landing at Mobile World in Feb

Citing unnamed supply chain sources, as well as what we’re guessing are some better informed sorts within Samsung, the Korea Times claims that the phone will land in February at the Mobile World Congress.

samsung galaxy s3 red
The handset is apparently set to hit retailers shortly after in March – just nine months after the release of its predecessor.

In news that’s unlikely to surprise anyone on nodding terms with prevailing trends in smartphone upgrades, Samsung’s new kit will purportedly pack a larger five-inch OLED screen – up from the S3’s 4.8-inches - and international 4G LTE support.

An unnamed deepthroat said: “Samsung wants to keep its one-year product schedule and the Galaxy S4 will be the first to match that strategy.

“The S4 will see some external changes but retain its popular rectangular shape with rounded corner concept.”

News of Samsung’s plans comes as it recently announced that the S3 has now sold some 20 million units, making it the company’s fastest-selling phone ever.


Source:
Korea Times

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Hybrid Dual Portable Computer

MIU Hybrid Dual Portable Computer (HDPC), which, fittingly, has two screens, two processors and two operating systems. Not quite a netbook, but a lot larger than a smartphone, the device features a 4.1-inch, 800x480 TFT screen that slides and then flips over to reveal a 320x240, 2.4-inch AMOLED display and keypad. An ARM processor handles phone-related tasks like capturing photos, playing music, and navigating the WinCE operating system. The phone operates either over VoIP or GSM/GPRS/CDMA networks.

MIU Hybrid Dual Portable Computer HDPC
An Intel Atom processor, in turn, runs the Windows XP operating system along with web-browsing, navigation and DMB functions. Switching between the dual modes of the hybrid device is done via manually selecting the preferred method. The HDPC is currently available for purchase in Korea for the equivalent of about $500.Link

MIU Hybrid Dual Portable Computer HDPC

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Dell Venue Pro

At the Windows Phone 7 launch event in October 2010, the Dell Venue Pro was one of the standout models with its portrait slider design and extra-large display and size. We've had to wait a long time since then to get one in for review and so have customers who experienced early shipment delays, but the good news is that the Venue Pro delivers. We had our doubts after the disappointing Dell Aero, but the company pumped out a solid device in the Venue Pro. It's a got a premium design with a good physical keyboard, a nice feature set, and smooth performance. If you can handle its large size, the smartphone shouldn't disappoint. The Dell Venue Pro is available with T-Mobile but is only sold through Dell. Pricing is reasonable: the 8GB model is $99.99 with a two-year contract and the 16GB model is $149.99 with a two-year contract.

Design
The Dell Venue Pro is a hardy piece of hardware, which has its pros and cons. The smartphone measures 4.8 inches tall by 2.5 inches wide by 0.6 inch thick and weighs 6.8 ounces, so it's a handful and certainly not the most pocket-friendly device. It's also quite heavy. The size alone will be a turnoff for many, but for those willing to overlook the bulk, you're getting a very solid and sturdy device. There are soft-touch finishes on the top and bottom of the phone, and the battery door has a textured surface; these plus the chrome accents along the sides make for an attractive handset.

The Dell Venue Pro is not what you would call a compact device.
Of course, the other benefit to the larger size is a bigger screen. The Venue Pro boasts a 4.1-inch AMOLED touch screen with a WVGA (480x800) resolution. Text and images appear sharp on the screen, and colors are bright and rich. The display does wash out a bit in bright sunlight, however. You can still read the contents of the screen at different angles, and there's a subtle curve to the screen when viewed from the side. This in no way hampers the responsiveness of the touch screen, as it immediately recognized our taps and easily zoomed in and out and scrolled through lists.

Aside from its size, the Dell Venue Pro has the distinction of being the only portrait slider in the current Windows Phone portfolio. The screen slides up to reveal a full QWERTY keyboard. The sliding mechanism is smooth and strong, so the display doesn't rock back and forth when you're simply holding the phone, and it securely locks into place once open.

The Venue Pro is a portrait slider with a full QWERTY keyboard.
The keyboard features rectangular buttons with a slight bump to them, making them easy to press since they're not flush with the surface. There isn't much spacing between the buttons, but they're a good size, keeping accidental presses to a minimum. Also, the phone isn't top-heavy, so it doesn't feel like it will tip over when you're using the keyboard. In addition to the physical keyboard, you can use the onscreen keyboard, which is really quite good. Unless we were sending a long e-mail, we found easier just to use the soft keyboard.

Below the display, you'll find the three required Windows Phone controls--Back, Start, and Search--in touch-sensitive form. On the right side, you get a volume rocker and dedicated camera key. The bottom of the device houses the Micro-USB port, while the 3.5-millimeter headphone jack and power button are located on top. The latter sits on a downward slope, so it's a little awkward to press when you have to wake up the device.
Dell packages the Venue Pro with an AC adapter, a USB cable, a wired stereo headset, and reference material.

Features
Starting with some of the basics, the Dell Venue Pro is a quad-band world phone and offers a speakerphone, call waiting, call forwarding, conference calling, voice dialing, and text and multimedia messaging. It is 3G-capable but the smartphone doesn't support T-Mobile's HSPA+ "4G" network. Wi-Fi, Bluetooth, and GPS are also all onboard. There were early reports that the smartphone had problems connecting to a secure Wi-Fi network, which Dell acknowledged and attributed to a software glitch in early units, but that has been resolved and we were able to connect to our secure home network with no problem. Link

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HTC Arrive

First known as the HTC 7 Pro at its New York unveiling, the HTC Arrive is Sprint's inaugural foray into the brave new world of Windows Phone 7. And the Arrive also represents two other minor "firsts": it's the first CDMA Windows Phone 7 phone in the United States, and it's the first Windows Phone 7 model to ship with Microsoft's cut-and-paste update.

As a result there's a lot riding on the Arrive's rounded shoulders, and for the most part it succeeds in carrying that weight. Like the HTC Surround, the Arrive is a thick chunk of handset, but that extra bulk makes possible a responsive keyboard and a screen that tilts for optimal typing and media consumption. While the data speeds are fine, we were a little disappointed that 4G WiMax isn't an option.
While there's a lot to like, the Arrive also has its drawbacks, some having to do with the handset's construction and some stemming from the Windows Phone 7 OS. For the most part, though, it acquits itself well as a Sprint newcomer.

Design
The HTC Arrive looks good, and looks strong. Rimmed with shiny, dark-gray paint, the handset has a glossy appearance and feel. It has barely rounded corners, like the iPhone 4, and two cutouts that reveal the front-facing speakers. On the back, a swath of brushed stainless steel and a decorative screw reveal that this is not a phone to be trifled with. And if there were any doubt, the phone's dimensions (4.6 inches tall, 2.3 inches wide, 0.6 inch thick) and weight (a whopping 6.4 ounces, nearly half a pound)--attest that the Arrive is one brick of a phone. Its bulk makes it a bit less comfortable to slip into a pocket, but you won't have to worry much if you drop it. We noticed, however, that the gray paint that rings the face easily flaked off in our bags and under our nail.

The HTC Arrive is Sprint's first Windows Phone 7 phone, and the first to ship with copy and paste installed.
At 3.6 inches, the WVGA capacitive touch screen is slightly smaller than that of the HTC Surround, but has the same 800x480-pixel resolution. While it's a fine screen that shows off bright colors and sharp edges, it doesn't have the richness or pop of the Super AMOLED display on the Samsung Focus.

Below the screen are three touch-sensitive buttons for Back, Home, and Bing search. A camera trigger button is on the right spine, and the Micro-USB charger and a large volume rocker are on the left. Up top there's a standard 3.5-millimeter headset jack and the power button. The Arrive's back houses a 5-megapixel camera and a flash. As with all Windows 7 phones, there's no card slot for expanding the phone's memory, but the 16GB built-in storage should be enough for most casual users' needs.

More than anything else, what makes the HTC Arrive stand out is its tilting screen. HTC is no stranger to this design; it brought us the AT&T Tilt and HTC Tilt 2, much ballyhooed back in 2007 and 2009, respectively. Those two handsets ran Microsoft's earlier Windows mobile operating systems.

As with its predecessors, the Arrive's screen slides out to expose a full QWERTY keyboard before tilting up 30 degrees (previous models tilted up 40 degrees.) You simply push the front face flat and slide it back over the keyboard when you're done. It takes a fair amount of pressure to open, and our thumb kept slipping on the phone's square design on our first few tries. The Arrive's tilting mechanism appears to be fairly sturdy, and makes a metallic click when you lay the face flat.

The tilted display is best when you're typing with the phone in your hand or setting it down to watch a video play; be aware, however, that the handset will rock back slightly if you put it down and then tap on the screen in the open position.

Below the display, the Arrive's keyboard manages to be spacious without being overly wide. Keys are fully separated, but barely rise above the surface. The backlit buttons are smooth and very responsive, although a skosh less comfortable than buttons with a more rubbery feel. There are dedicated buttons for emoticons and diacritical marks, and for adding currency symbols for euros and pound sterling.

Interface
We've examined Windows Phone 7 in depth elsewhere, but there are several features worth noting here. First, the Arrive comes with Microsoft's copy/paste feature installed, the first Windows Phone 7 device to ship with it. Touching a word on a Web page or in a document presents tags that you can easily drag to select an area. Highlighting a word also causes a "copy" icon to pop up. Tapping it then saves the selected text to the clipboard for later pasting. Finally, a "paste" icon appears when you tap an input field, like a Word document or a search field.

Unfortunately, some screens still don't convert to landscape mode.
Copy/paste works intuitively and smoothly, and we love the visual panache. You can paste the same text multiple times. However, the functionality isn't strictly systemwide, although it does appear in the obvious locations, like the browser, e-mail, documents, maps, contact cards, and search results. For instance, copy/paste doesn't appear as an option in some of the settings menus, so you can't use it when configuring your e-mail--something we could do with both Android and iOS. Link

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Windows Phone users must update to 7.5 or else

If users don't update their Windows Phones to 7.5, they won't be able to access Marketplace.
(Credit: Josh Miller/CNET
 
Anyone with a Windows Phone that hasn't been upgraded to version 7.5 won't be able to use Microsoft's Marketplace app store as of today.

Microsoft announced today that in order to download, buy, update, or review apps in Marketplace, users have to be running Windows Phone 7.5. This change is required for both the phone and web Marketplace storefronts.

"Most phones are already running Windows Phone 7.5, which was released last fall, and so most of you won't notice anything different about how the Marketplace works," Microsoft's director of program management, Mazhar Mohammed, said in a blog post today. "However, if your phone has an earlier version of our software installed, you'll soon start seeing an error message when you try to download a new app, or update one you already own."

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Samsung launches the Omnia M Windows Phone in Europe

Samsung Omnia M.
Samsung is launching the Omnia M, a new Windows Phone 7-based device, in Europe. The Windows Phone 7.5-equipped handset ships with a 4-inch Super AMOLED display and 1GHz processor. The device features a minimalist design with rounded edges and a curved back. According to Samsung, the case was designed ergonomically so it "sits comfortably in your hand."

The real focus of the Omnia M is its social features, which include access to the company's Family Story, a cloud-based network for family members to share messages, videos, and photos. Samsung has also bundled its ChatON service with the device, allowing users to engage in group chatting and messaging across several platforms, including iOS and Android.

It's been a busy week for Samsung's Windows Phone business. Earlier this week, the company unveiled the Samsung Focus 2, a $50 Windows Phone boasting a 4-inch Super AMOLED display and 4G LTE support. That device is going on sale May 20 on AT&T's network.

The Omnia M, on the other hand, will be coming to Europe first. Samsung said today that it plans to roll out the Omnia M to other regions, but didn't say when it'll start doing so. Link

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Viber hits 100 million users, partners with Nokia on WP7

Viber is now coming to Nokia Lumia devices.

The company announced today that it now has 100 million worldwide users taking advantage of its free phone calls, texting, and photo-messaging services. It's not clear if those users are actively using the service or have just signed up. Still, the company claims to handle over 2 billion minutes of calls and 6 billion messages every month. An average of 10 million calls are placed each day. 

Viber has established itself as a true competitor to Skype, the popular VoIP service now owned by Microsoft. Viber works across iOS, Android, and a host of other mobile platforms, and allows users to communicate with others for free.

In addition to announcing its milestone, Viber said today that it has launched a new version of its service for Nokia's Lumia line of Windows Phone 7 devices. The app allows owners to place free HD-quality phone calls and hold group-messaging sessions. Users can also send out free text and photo messages.

To further commemorate its milestone, Viber announced that its app is also being released on Nokia's S40 platform. The VoIP app is also making its way to Symbian and Bada.

 Source by

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Nokia could launch entry-level Windows Phone 7.5 handsets, says report

Nokia's Lumia 900.

Nokia may offer entry-level Windows Phone 7.5 devices by year's end, according to DigiTimes.
Citing the usual "industry sources," DigiTimes said the new phones would be aimed at consumers in emerging markets, who are considered more price-sensitive.

The hardware requirements for Windows Phone 8 are stricter than those for its predecessor, demanding a dual-core processor and support for near-field communication (NFC). Those features would be difficult to add to more entry-level and mid-level phones, according to the sources, prompting the need for less pricey Windows Phone 7.5 devices.


(Credit: Josh Miller/CNET ) 

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