iRobot's new Scooba, on the other hand, does something new: it washes hard floors. In one pass, it sweeps up loose dirt, squirts a cleaning solution down onto the floor, scrubs, and suctions up the dirty water.
There's no automatic charging station for the Scooba, since the designers don't want a machine full of dirty water going unattended for too long. The machine is also more expensive than the Roomba: it's $400.
There is no news on the window-cleaning version yet.