The only game I think that has been developed with DX11 from the ground up is BF3.
All other games start as DX9 and patched in house or after lanuch to DX11.
That's why BF3 looks so much better than other DX11 games. Devs have to use DX11 from the beginning, and scale down to DX9 for consoles. Most are saying that's not cost effective at this time. Hopefully, DICE will bring back the standard of developing from the top down.
Edited by WorldExclusive - 6/22/11 at 6:49pm