mobile_mac_mini1
This ultimate project by James and Mick was part of the Mod Challenge from MacMod.com.

Mobile Mac Mini has four wheels, equipped with luxeon headlight for colored CCD video camera; it is controlled by Wifi or Apple IR remote that works up to 100 meters. The modest IR sensors are for evading barriers and to instruct the robot to stop. Its motors spin at around 100rpm and driven with battery it works about two hours depending on the driving conditions.

.....The server software allows control

over a local area network ...of the motors, tilt servo and headlight controls. We also have provision for a compass and gps on the robot. Video is streamed at the moment via iChat....

Via: hackaday