Well, the Mint Automatic Floor Cleaner 4200 by Evolution Robotics is currently on sale at Amazon.
You can currently save 20% and buy it for only $199.00.
Mint uses infrared light for smart navigation to clean your floor with Swiffer like pads.
See our previous post Mint Cleaning Robot.
Mint has also won the CES Innovations 2011 Design and Engineering Award.