You could try Call of Duty 2, it´s working quite good on the TG01 and it´s considered to be the best looking ppc fps so far (beside the hw accelerated version of quake 3 of course). It would even work in Fullscreenmode, but it´s rather slow and the image gets stretched.
I tried to get Doom, Heretic, Hexen, Quake 1-3, Wolfenstein etc working but had no success. (due to the lack of opengl support / driver issues / none working whitescreen fix...)
But as you may have seen i´ve played the PSX Version of Quake 2 on my TG01 with FpseCE. But due to the restrictions in V.0.9.6 it was only working in portrait mode.
Whats very interesting/annoying: the 3d accelerated version of CoD2 is way slower than the software version! This bugs me out, i want new opengl drivers!
Edited by SinSilla, 03 August 2009 - 06:09 PM.