I have to say everything looks much crisper. apple Nvidia, and Steam/Valve are working very closely on drivers for the mac for performance updates. there was a slight performance boost with this recent release. Valve has said there are Drivers being worked on to Increase performance on GPU's for the mac coming down the pipeline but no time frame has been given. i am excited my picture desktop that i have over 1100+ photos and image's it cycles through looks much crisper to my eyes? i am glad the drivers are finally being improved any one els see performance +'s around their mac's since 10.6.4?