Microsoft Open Technologies is working with the ANGLE Project community to enable ANGLE in Windows Phone 8 and Windows Store apps. This will allow developers to reuse their existing OpenGL ES 2.0 code, and to apply their current skills to building apps and games for Windows devices.
ANGLE Project is an open source project which goal is to allow Windows users to run OpenGL ES 2.0 content seamlessly by translating OpenGL ES 2.0 API calls to DirectX 9 or DirectX 11.
You can read more on our new blog here: http://aka.ms/msopentechcontributestoangle