Okay, is ATI OpenGL under Linux usable now?
* They finally added support for the newest (stable) versions of the kernel & X.Org in Catalyst 10.7 (no need for manual driver patching)
* The slow 2D performance is history - Starting from Catalyst 10.6, 2D runs like butter, even with compositing
* OpenGL is usable (it works nicely even under WINE), but there are still a number of WINE bugs (these are not ATI driver bugs) that the WINE developers
need to fix.
* There's still a bug with Unigine Heaven (an OpenGL 4.0 demo/benchmark) when tessellation is enabled
NVIDIA = 240 extensions (GL 4.1)
ATI = 204 extensions (GL 4.0 + GL ES 2.0)