The Lego Education website http://www.legoeduca...a...t=1&ID=1573 describes the contents of the WeDo kit thus: "The set contains more than 150 elements including a motor, tilt sensor, motion sensor, and LEGO USB Hub." Bricklink lists it as Part 9581 ( http://www.bricklink...PG.asp?S=9581-1 ), but Peeron doesn't list it at all....
Apparently, one can power motors and/or sensors using a Laptop Computer's battery via the USB cable. This MAY be useful in controlling some of the more complex Lego TECHNIC models can can be "tethered" via cables and which don't have to drive far. Does anybody out there have this, or seen it used?
Edited by dluders, 08 May 2010 - 03:39 PM.