I bought the Lego Mindstorms NXT kit for teaching the guys @ work some programming concepts. For $250 it's a cheap corporate training aid. It's also way cool. I brought it home last weekend to see what it could do. It has three servo motors with position feedback encoders, a touch sensor, sound level sensor, ultrasonic rangefinder, and a light/color meter. After building the demo robot, I turned my attention to building something really useful... A CD labeler! Servo #1 rotates the CD (clamped in place by the tire), servo #2 moves the pen in and out, and servo #3 picks up the pen so you don't have to write in cursive. The controller is programmed in a kiddie version of LabView - the same software we use @ work to program our test rigs. It's scarry to imagine what tomorrow's engineers will be able to do after growing up with stuff like this.
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