iRobot already has a bunch of awesome robotic vacuums that can make your life easier. The iRobot Terra robomower is also worth a look. It is an intelligent robotic mower with smartphone activation. It can be set up with wire-free standalone beacons and uses Imprint smart mapping and straight-line navigation to mow your lawn efficiently.
The Terra robot is smart enough to go back to its docking station when done. It has a rugged design.