Project N.O.M.A.D stands for NXT Optimal Movement and Autonomous Drive and is the creation of Eric Smalls, one of the forums’ new users.
The robot, which is named S6, does more than just back up and spin around. When an object is detected ahead, it will use the motor attached to the Ultrasound sensor to look around and turn to the side with the most space. This goes a long way to preventing it from getting stuck in a corner. Pretty clever.