Microsoft SideSight is a new mobile device research project, aimed at giving touchscreen functionality without needing to touch the screen! The plan is to have a range of sensors around the device which would allow you to click, rotate images, swipe the HTC Touch-Flo interface etc all from up to 10 cm away.
I really like this as I always seem to need to use my phone (HTC Diamond) just as I’m eating crisps, chocolate, chicken etc and thus a frantic hunt for a napkin ensues! This would mean I could still answer it, view some notes or whatever without getting it covered in grease..nice
I spotted this over at Engadget.