I'm a Blender user and I think there is no need to modify the UI to be useful in pandora. Blender already has tablet-friendly options (I've tried it in a tablet), the UI windows are very flexible and it's very keyboard-oriented (I rarely use menus). It only needs some key remapping. Obviously I wouldn't use it for rendering.
It also would be pretty useful as a python editor (there is a GSoC project which makes the blender text editor much better than other IDEs for python programming).
Also the game engine is not that slow and converts blender material nodes into GLSL shaders since it has been vastly improved at the apricot project. However I doubt it would go at decent speed at pandora without some heavy porting to OpenGL ES 2.0
It also would be pretty useful as a python editor (there is a GSoC project which makes the blender text editor much better than other IDEs for python programming).
Also the game engine is not that slow and converts blender material nodes into GLSL shaders since it has been vastly improved at the apricot project. However I doubt it would go at decent speed at pandora without some heavy porting to OpenGL ES 2.0