OK, this looks like too much fun :flying
Who knew your iPhone / iPad could fly?
retails for $299.99
http://www.brookstone.com/ar-drone-quadricopter.html (http://www.brookstone.com/ar-drone-quadricopter.html)
CES: Battling AR helicopter controlled by iPhone (http://www.youtube.com/watch?v=TSv2ca-IECc#ws)