Just in case anyone's interested, I have a working blender 2.4 build at https://github.com/radiochickenwax/blender-n900-maemo. It runs pretty smooth for modeling and animation, but really slow for rendering.

All you need to run it is the binary from here. It's statically linked against maemo's python-2.5.4.

Unfortunately however, this doesn't work using the default window manager in hildon-desktop. So if you want to run this, you'll have to change that. See post#3 for a cool workaround. I started some poor instructions here.

Hope this helps someone out there.