This is an interesting proof of concept being demoed by RIM. It’s certainly not practical at the moment – requiring an overhead camera means it only really works in mobile/fixed testbeds – but it is cool. The next step, beyond building buzz of course, is to figure out how to make this kind of technology useful to the consumer. Still, it’s good to see RIM demoing the ‘cool stuff’ they’ve been privately researching. Hopefully we see more of these kinds of demos in the future to build a rebuild the beleaguered company’s public image.