http://www.phoronix.com/scan.php?page=article&item=amd_linux_wec7&num=1
Для Ъ:
AMD has been porting the open-source Radeon Linux driver to Windows Embedded Compact 7 (WEC7) as its graphics driver.
It is somewhat surprising that AMD would be porting the open-source Linux driver to a Windows platform rather than using the Catalyst driver as a base. The Catalyst driver code-base is already OS-agnostic for the most part and then there is the Windows and Linux-specific shims. It's disturbing to think just how dirty and crusty the Catalyst code-base actually is, if it's easier for AMD to port a (non-feature-complete) Linux driver to Windows rather than relying upon the mature Catalyst driver and migrating the existing Windows driver interfaces to WEC7.