New input interface for mobile

This new input interface by Tokyo University can capture the in-air movement of fingertips. Is this the logical evolution of mobile interfaces after multi-touch?

As you can see in Nintend Wii and iPods, more devices are adopting intuitive interfaces like touchpanels and motion capturing today. These devices make it much easier for people to use otherwise complex devices.
A device developed by Tokyo University team seems to go a step ahead of existing devices. It can translate in-air movements of fingers to computer command, which enables you to use portable devices without even a touch.

Via Gigazine.