We developed a web controlled robot. Using pusher, developed a desktop client that tells the robot to move forward, backward, turn left and right. We used Cherokey 4WD kit to build the robot. An Arduino Uno (thanks to the Make Robot Hacks Session), a Wifi/Wifly shield were connected to the kit that receives the control signals from the web. Based on the control signals, the motor controller is instructed to move. Here is a video.
Web Controlled Robot from Nahid Alam on Vimeo.