Apple at QuakeCon

Apple was at QuakeCon this year... According to this MacCentral article

The tournament play machines are brand-spanking-new 800MHz dual-processor Power Mac G4s equipped with GeForce3-based graphics cards and gobs of memory. The machines are running Mac OS X and a new, internal build of the Quake 3 Arena executable not yet available to the general public.

Here is a photo of the G4's