So, I'm looking into the prospect of 3D programming for the Zaurus. Mesa3D looks nice, but slow... on the other hand, there's a fairly old 3D library called Klimt out there.
Klimt WebsiteKlimt is meant to be similar to OpenGL|ES. The whole thing is coded with fixed-point arithmetic. It can display high-poly (around 1000) models at over 100fps on a 206Mhz StrongARM.
There are a couple of threads that point to this library running on the Zaurus... with the Sharp ROM. The Klimt code supplies interfaces for both QT and X11, however, so there's hope for pdaXrom.
Unfortunately, the code fails horribly when you try to compile it now. Probably because it's over two years old. I don't have GCC2.95 lying around anywhere to see if it'll compile under that, or the requisite libraries Klimt needs aside.
I've sent a letter to the maintainer... no idea if I'll get a reply. Is anyone interested in Klimt for pdaXrom? I'd definitely use it to make games if I could just get it to build.