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Windows Phone 8 Development Internals by Andrew Whitechapel and Sean McKenna

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Chapter 13. Porting to Windows Phone 8 and multitargeting

Although Windows Phone 8 represents a major step forward for the Windows Phone platform, the transition from Windows Phone 7.x is not without hurdles. Significant architectural differences between Windows CE (the basis for Windows Phone 7.x) and Windows NT (the basis for Windows Phone 8) mean that existing devices cannot be upgraded, which will keep millions of Windows Phone 7 devices in market for several years. For app developers, even though Windows Phone 8 provides backward compatibility for Windows Phone 7 apps, there are some breaking changes that must be dealt with when upgrading an app to the latest operating system (OS) version. In this chapter, we review techniques for maximizing ...

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