Hate weeding? The Tertill, the latest robot from the inventor of the Roomba, will clean up your garden

What do vacuuming, mopping, and weeding have in common? They're all repetitive household chores that must be done frequently. They're also all targets for roboticist Joe Jones. Jones invents practical, mobile robots, among them the vacuum-cleaning Roomba and floor-washing Scooba, which he developed at his former employer iRobot.