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Ay, Robot!

The main display with iRobot's Scooba, but this one is for your pool.

And this one you let loose in your gutters.

For some reason I like them better with knobby wheels and tractor treads.

(And P.S. it was a real downer to see the gutter cleaning robot in the Sky Mall magazine on the plane on the ride home. So much for exclusive peeks at CES.