I made my top level comment with reference to OneNote before seeing your comment. Why is it that this reminds you of OneNote? I agree, and Ink&Switch certainly show that tablet and stylus are a quick moving interaction model, what more do you want from that interaction scheme? Does OneNote do it for you or do you want more? I pointed out above that I think OneNote "is a modern take on paper" but Capstone "is a modern take on screens" and I mean that OneNote for all it's brilliance only expands the whiteboard to paper. Capstone has worked in so many more powerful abilities to it's user, it takes full advantage of the fact that it lives on a screen on the computer. They wrote a great paper on end user programming in this tablet environment. That doesn't seem to even be an experiment that could exist in OneNote.