Wow...just wow! I'd have to see that work in the real world. It takes considerable force to brush out a dirty grill, especially with a lot of burnt sauce. Like the carpet bots, they would accomplish this through a lot of repetition. Maybe a laser scouts for residue and stops when there is no more?
I gotta confess...I think our technology has long exceeded our humanity. Now they're really pushing the driver-less electric car concept...I guess IRobot becomes the new reality. I'm not frightened of the future or change, but much of it seems not well thought out.
Kevin