Here's a first-hand user's experience: It took me a bit to figure out how to make it work. I thought I should click the pen hole and press my mouse key as I move it around. Maybe a simple how-to description to get me started would be helpful. Of course, I could just play with it a little more :)
So this won't work well on an iPad...
Wonder if that will be free as well. How would one go about transforming a (desktop) web app such as this one into an app for each mobile platform?
Edit: and here's the source:
Looks like a bit of framework bloat (in my opinion), this is really the kind of thing that could cleanly be done with minimal frameworks and libraries. But the source still looks nice (and there's even a windows screensaver version??)
A more classic spinorial object is a belt attached to, say, a book, or apparently your own arm holding up an oriented plate:
Very nice work! Congrats!