Hi all. Dunno if I can be much useful.
Check out this simple 3D Engine for Nokia devices that features real-time backface culling, light shading and z-ordering.
You can find it at http://wap.atomictag.com/3d for both download and OTA.
It's just a beta release of a bigger project that will include a simple tool to add .OBJ-like files to render various shapes. All the project is going to be open-source, so every comment will be mostly appreciated.