Interesting article about the potential use of a full-service window-washing robot. Here's to the "idiosyncratic corners, buttresses and recesses of New York’s 20th century skyline."
Source: Bischof, Jackie. "High Rise of the Machines: Robots Wash Windows." Online.wsj. Dow Jones and Company, 4 Feb. 2013. Web. 25 Jul. 2013 <http://on.wsj.com/PicmCQ>.