Although we don't know all of the specifics, the mower, according to Reuters, would operate through stakes in the ground that wirelessly connect to a mower and map out where it should cut.
That approach required a waiver from the Commission, which was granted despite objections from the National Radio Astronomy Observatory. The observatory argued the mower's signal would interfere with telescopes, but the FCC sided with iRobot, saying its limitations would insure astronomers' work wasn't harmed.
Don't get excited too quickly, as iRobot says that it's still in the exploratory phase and won't be releasing the mower anytime soon.
Robot Lawn Mowers are on the Horizon
8. 13. 15 by Alex Klokus