Both Blender and Maemo have python.
So it is potentially possible and potentially not so hard to make N900 3d blender controller.
All we need is python modules for:
0. Recording accelerometers data on N900;
1. Streaming accelerometers data live to desktop and caching it real-time;
2. Controlling active blender view;

I suppose it will be:
a) active only when holding some button (camera for example), and
b) turning blender view relative, not absolute.