„A team of four engineering students from Michigan State University have created — and won an award for — an automated window cleaner that requires a human to do no more than push a button to get it started. Called the Winboni, the ‚bot runs off of AA batteries and adheres to the window using a suction fan, cleaning it with felt pads.“
http://dvice.com/archives/2008/12/university_stud.php