See, I don't think you're correct about webcams. Most of these other technologies have been supersceded by something superior - the Webcam is a simple video in

See, I don't think you're correct about webcams. Most of these other technologies have been supersceded by something superior - the Webcam is a simple video input device. Unless someone figures a superior method to get your image digitised into a machine (for example, 3D imaging, sort of like how Microsoft is trying to commoditize the 3D camera with project natal) - I really don't see these going anywhere anytime soon. I suspect the author's predictions will ring true in this regard, with webcams becoming more advanced and being included in more devices.