You may have already watched the video, but if not, it is available to the left of this text :) --------------------------->
The Raspberry Pi Camera robot is designed to be a relatively low cost robot that has the ability to be constructed by complete novices (I achieved it!), but being complex enough to be of long lasting fun/practical use. As outlined in the video it consists of a chassis with two motors, allowing it to move in all directions, and a camera module attached to a pan/tilt motor set. This allows the camera to move up/down and left/right, separately from the entire robot.
The robot is controlled by any WiFi enabled computer, tablet or mobile device, so is incredibly portable, especially when simply powered by 6 AA batteries.