Anki Drive ...( file this under "That's so cool!!!" )

Remote Control Car Racing From Your iPhone

"The tech is invisible: Cars scan special infrared codes on the track up to 500 times a second, telling them positioning, speed, and relation to the rest of the pack. You tilt the phone left or right to switch lanes and determine the angle at which you turn, slide your finger up and down to control your speed, and deploy weapons when necessary (think: tractor beams, shields, machine guns). LED lights atop the cars signal everything from machinegun fire to mechanical breakdown, reinforced by the sound effects playing on your iOS device."

Read more: http://www.mensjournal.com/gear/electronics/remote-control-car-racing-from-your-iphone-20131023#ixzz2mcnqXoSQ