I started poking at the DOOM3 source a while ago, with no idea what I'm ending up with...
It's still in its early stages, but I think I already got to a nice state which might be of interest of others.
So if anyone cares, I'm interested in feedback, testing, bug reports and fellow hackers to improve this code base.
The video quality and FPS on Wayland is stunning. I have NEVER seen OpenGL-intense gaming (presumably on an open source graphics driver?!?) with such a smooth framerate on the free desktop. I think you've just hit a milestone, buddy. Major kudos to you!
I'll be trying to reproduce your results on Ivy Bridge shortly (this weekend).