Google's Project Soli is using radar technology

Up to now we know gesture-based controls only as systems which are usually attached to video game consoles like the Microsoft Kinect. But this is awesome. Google's Project Soli replaces the physical controls of devices - not even a screen or other surface is needed - you use only your hand and familiar movements with your fingers and Soli capture your movements by radar.

The Project Soli team started with a device which was about the size of a pizza box to about the size of an SD card in less then a year. They announced that they will have more end of the year. I am very curious to see more.

Watch the video for an introduction to Google's smashing idea and approach.
It's very very impressive.