Exactly, certain ideas seem perpetually "futuristic" but never seem to catch on: voice recognition ("Imagine dictating your letters!" =&#62; Really annoying to make corrections), gestures ("Imagine waving instead of using a mouse!" =&#62; Gorilla Arm), video chat (I want to wear my pajamas and not pay too much attention), and so on.<p>That said, I don't want to discount some new innovation taking over :).