It's hardly a new concept, but we're not about to bemoan the appearance of another sight-controlled robot, especially one that seems to be as simple and effective as this one created by a team of researchers from the Technical University of Denmark and the IT University of Copenhagen. That simplicity begins with the LEGO NXT-G kit that the bot is based around, which gets paired with a webcam and a laptop that's connected to the bot via Bluetooth, and to a desktop PC via WiFi. The PC comes into the picture with an eye-tracking system that lets folks control the robot as