Lego WeDo is a robotics product put out by Lego. It's a motor and some sensors that run from a wire plugged into your computer. Here is a description...
http://gadgets.boingboing.net/2008/07/25/wedo-legos-new-robot.html
It has it's own programming software...but you don't need it since you can use Scratch 1.4
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