C++ Windows Phone Development support (At least in Windows Phone 8)
Windows Phone 7/7.5 only support C# and VB development,
if we can use C++/CX/XAML to development Windows Phone 8 application, It is great!!!!!
Felix Huang commented
"Native code support: Windows Phone 8 has full C and C++ support, making it easier to write apps for multiple platforms more quickly. It also means Windows Phone 8 supports popular gaming middleware such as Havok Vision Engine, Autodesk Scaleform, Audiokinetic Wwise, and Firelight FMOD, as well as native DirectX-based game development."