If you find quad-copters doing cool stuff check out also this video: http://www.engadget.com/2010/03/18/quad-copter-responds-to-your-voice-isnt-coming-to-a-toy-

If you find quad-copters doing cool stuff check out also this video: http://www.engadget.com/2010/03/18/quad-copter-responds-to-your-voice-isnt-coming-to-a-toy-store/ http://www.engadget.com/2010/03/18/quad-copter-responds-to-y...