What would be the best between
1. pyGE Touch like implementation under SketchUp, doable if SketchUp can support WIN32COM interfacing http://code.google.com/p/pymt/source/browse/examples/kaswy/PyGE_touch.py
2. Going with Aberrant's TUIO Client within SketchUp, we won't continue with it since thread calculation within SketchUp's scripting is quite a pain.
3. Write TUIO to Text/XML, and get it read by SketchUp. That's what we're busy doing now. After this works, we'll work with code refinement and optimizing the stuff before moving to gestures.