Windows 8 Consumer Preview and Tools for building Metro style apps can be found here.
Slides and videos from //build/ talks on Metro style app development
APIs available to use from C++
User Interface choices available to C++
C++/Cx extensions, new in the Windows Developer Preview release is discussed in a number of talks and blogs. The
Visual C++ Developer Center has links to these materials.
Samples are updated and added periodically.
App migration and walk-thru topics including Windows Phone 7:
End to end apps and games
Use the Windows App Certification Kit to test a
released build of your application for Store validation.