The Leap Motion controller will be available in May, 2013 for $79

The Leap Motion controller, a computer accessory that lets you control your Mac or Windows 7 PC with hand gestures, will launch May 13 for a very reasonable $79.99, the company announced today.

Leap Motion had a lot of people going nuts when they saw it at the Consumer Electronics Show earlier this year. The dongle sits beneath your computer monitor and can recognize hand gestures in the air such as swipes, pinches, etc. It's much more practical than using a touchscreen all-in-one PC.