I'm wondering if the Leap motion technology will take over touchscreen technology for desktops before it really gets going. Not sure if people have seen this, but I got my pre-order in as soon as they were announced. Not expected to be out until Dec-Jan, but this looks amazing IMO. Apparently it's sensitive enough to pick up each of your 10 fingertips, and the obvious advantage is a 3D environment to move your hands in, rather than a 2D screen to scroll your fingers across. And it's only £40!:
http://leapmotion.com/