Apple is explaining how to optimize Open GL

Apple has published yesterday on its Developer Website a Technote explaining the best way to optimize OpenGL performance with OSX.
If Doom3 was not released few days ago, this TechNote would have probably not been noticed...but Doom3 is out, and current performances are rather disappointing.
Apple is maybe trying with this Technote to convince us that Aspyr has not properly ported this game on the Mac platform...just an impression, nothing else
http://developer.apple.com/graphicsimaging/opengl/optimizingdata.html