Neat project overview of another technology using video to control a PC. Rob Stephenson is giving a presentation here that was a neat project focused on making presentations better. The goal was to use a laser pointer to make a presentation more interesting. He’s using PyObjC to snag video frames through Cocoa and an iSight and then twiddling out the computer interactions from there.
I’m afraid he isn’t a terribly dynamic speaker, but it’s neat seeing what he’s taken a stab at.