It's amazing how so many of those are Quake3 based games...
ID dropped the NV specific code path in D3 so Nvidia and ATI cards will be on the same ground now.
BTW I've heard rumors of ATI redesigning their OpenGL code from the ground up.
Yeah, Carmack said he dropped it because it was a pain and nVidia had squeezed more out of their drivers anyway.
I've heard that rumor too, but then it's the kind of rumor you'd expect to hear, huh? Well here's to hoping that ATi has a fast & stable OpenGL driver by Doom3's release!
Homeworld2 is an OpenGL game...ATI rocks in that game with their current OpenGL code.
Hope they can improve for all games though, and in D3 like you said.