Are you sick of your needy cellphone, always asking that you pick it up in order to perform essential tasks? Well, the brain wizards at Deutsche Telekom (pictured above) have just the thing for you: MagiTact is an app that uses your phone's compass (provided your phone has a compass) to track changes in the magnetic field around the device. This creates the possibility of a whole host of gesture-based commands, such as silencing a ringing phone or terminating a call, without having physical contact with the device -- as long as you're wearing magnetic rings on your fingers. Another interesting possibility is a pinch-to-zoom function that takes place behind the phone, so your fingers don't obsc
