hmmm....."linux gaming" what's that?
The games I play on Linux are meant for windows(heroes 3,counter strike and disciple II, I play them threw wine because they are not native.No one budder to make them for linux).Try to run World Of Warcraft with Ati drivers on linux.
On my 1.6 Ghz dual core ,1 GB of ram machine they play like on a 133 Mhz ,64 Mb of ram windows machine.Spot the difference?.So why should anyone release their software on linux when on linux you don't have decent drivers(mostly from ATI retards) and decent video rendering.
I hope that on 2008 i'll see some Amd graphics improvements.

Sorry for my bad english.