"In Windows 8, Metro apps run on top of a new application architecture called WinRT, which is a low-level set of APIs that run just above the Windows kernel. WinRT is the Metro equivalent of Win32, which is the API that Desktop apps use. "
Didnt we just read an article yesterday about how this isnt true? WinRT is built on top of win32, not parallel.
It's both. WinRT is an ABI as well as a set of tools. The WinRT API can be implemented as wrappers around Win32 APIs (as would make sense for functionality in the WinRT surface area that mirrored applicable functionality in the Win32 surface area) or new code (as would make sense for new functionality).
Didnt we just read an article yesterday about how this isnt true? WinRT is built on top of win32, not parallel.