Social Robots

Originally developed as a therapeutic tool to help autistic children with social communication, this robot is now being released as a toy that can dance in time to music or clapping. Sensors make the robot sensitive to types of touch, allowing it to respond differently to, say, pokes and squeezes.

http://www.technologyreview.com/video/?vid=751

A little more details on "keepon"

http://www.youtube.com/watch?v=yFfw0RteVwA&feature=related