Homepages: LAMI - DI - EPFL
You can also look to the Khepera miniature mobile robot...
New pictures waiting for a better description.
Here is a sample of the robots built in the lab :
The miniature robots
From left to right, and from up to bottom, aKhepera with a gripper and a stereo camera, another Khepera with a color camera, the LAMI onecentimeter cube robot and the LAMI one inch cube robot.
The one inch cube autonomous robot