Ramblings from another nerd on the grid
When you get a few extra minutes, check out the research Jeff Han has been working on at http://cs.nyu.edu/~jhan/ftirtouch/. He calls it "Frustrated Total Internal Reflection". Sounds like a diagnosis to me. Check out his demos.
You can also see a demo at http://www.ted.com/tedtalks/tedtalksplayer.cfm?key=j_han.