I'm not sure exactly how, but apparently Direct3D 10/11 Is Now Natively Implemented On Linux! Big news as this will let Linux drive forward games through WINE (which has limited DirectX support now).

Prost to Gallium3D and the open-source Mesa developers for making this milestone possible! Hopefully soon we can finally see an OpenGL 3.x/4.0 state tracker too. Implementing Direct3D 10/11 on Linux required around 26,000 lines of code to be added to Mesa.

Thanks for Aryk to sending me the link.