UPDATE: "Electric Sheep 2.6 The title of this rather compelling application is derived from the thought-provoking novel by Philip K. Dick, 'Do Androids Dream of Electric Sheep?'.Essentially, what this open source screen saver does is allow a vast number of computers to communicate with each other to create abstract animations known as "sheep". Visitors can also vote for their favorite 'sheep' as well, thereby allowing other fellow users the ability to learn about their own preferences for abstract art. This version of Electric Sheep is compatible with most operating systems."
(from "The Scout Report" 11/29: July 22, 2005)
the electric sheep screen-saver (from Boing Boing)