OK. So gesture-based recognition is nice and quick and stops me having to move my mouse-cursor to buttons. And type-ahead find is really nice because it stops me having to take my hands from off the keyboard to link, yeah? Let’s take this one step further, and find a use for the crappiest of all PC accessories, the webcam (which you probably bought when you thought people wanted to see you on your weblog but then you realised RSS is the future anyway so that was kind of