Lego Segway
Jeff Lalo writes "This Guy has built a Lego version of Dean Kamens Segway Human Transporter. This thing was constructed using only Legos, two cheap (~$40) custom sensors and some smart programing using the open source BrickOS for the Lego RCX. The LegWay, as the creator calls it, can balance itself on two wheels and follow a line. Pretty cool for few lego blocks!"
Whoa! A Slashdotting counter!!!!
$40 maybe for the needed senors, but the RCX brick (the big ass thing everything is connected to / and what controls it), is at least $120. You're actually better of just buying the whole Lego Mindstorms set and getting a whole bunch of other sensors, parts, etc. . . For $195 online.