Here's my first release of psp software. It's a port of cal3D and a custom 3D demo of the cally skeleton model for the psp. I've tested it under 1.5 and everything works fine. It _should_ work under 2.x since I'm only using pspgl and freetype with no net/usb/kernel access - so please let me know. Here's a screenshot:
Get the demo from here: http://188.8.131.52/cal3D-RC1.zip
More info in the ps2dev.org forums.