In our announcement of Windows Phone 7 Series at MWC on Feb 15 you saw just how different Windows Phone 7 Series is. It’s different from what we’ve done in the phone space before and it’s different from other phones. Charlie Kindel acknowledged that existing Windows Mobile apps won’t be able to run on Windows Phone 7 devices “To enable the fantastic user experiences you’ve seen in the Windows Phone 7 Series demos so far we’ve had to break from the past.To deliver what developers expect in the developer platform we’ve had to change how phone apps were written. One result of this is previous Windows mobile applications will not run on Windows Phone 7 Series.” Kindel shared some important elements for Windows Phone 7 Series development platform. “First and foremost, let me stress that that Silverlight and XNA will be key to the Windows Phone 7 development platform. .Net developers will find “your skills and much of your code will move forward,” he said. For Microsoft, the cost of going from good to great is a clean break from the past. For example, previous Windows Phone content will not run on Windows Phone 7 Series.
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