Flying Robot Penguins Video

Wow supercool. Flying robots "swimming" freely in a defined airspace using ultrasound transmitters.

Via @dinoignacio

Watch the video here:

http://www.youtube.com/v/jPGgl5VH5go&color1=0x3a3a3a&color2=0x999999&hl=en_US&feature=player_embedded&fs=1