Petr Sebor wrote in with this interesting finding regarding 3d Radeon 8500 support:
Do you know that the ‘workstation’ FireGL binary drivers are in fact Radeon8500 compatible?I have them installed on my debian / 2.4.18 machine and the GL stuff is running exceptionallywell! (at least all the apps I’ve tried)… Extension-wise, the driver seems to exhibit the same setas the windows one, so probably 8500 users might be able to run Doom3 at the time the linux binary ships… probably.
terracon also wrote in to report his success with the drivers:
ATI released drivers for the firegl 8800 which has the same core as the 8500 (r200) and it just so happens that these drivers work . So people that have been 3dless can downlaod these . They do work I have tested them out.