Robotic Ipad Leg

The $2,499 telepresence robot uses a pair of iPads: one sits in the self-balancing base, the other serves as a remote control. Double Robotics' app will let you control the robot — rolling it about and adjusting its height — while the iPads' front-facing cameras stream everything the robot sees, and allow you to interact with passersby.

source : http://www.theverge.com/2012/8/14/3241260/double-robotics-telepresence-ipad-robot