I'm not really sure what everyone is bitching about. What apps are not running or rendering correctly? I'm running R500 (X1600) on Macbook Pro. The OSS driver is much better behaved than the proprietary driver ever was for me. I have always had a video tearing problem with FGLRX but none with the OSS driver. I'm running 2.6.33-rc8 and DRM / Mesa / xf68-video-ati from git and am quite happy with the progress of the driver stack.