via Bill Wolff Composing Space
"Created by David Merrill and Jeevan Kalanithi at the MIT Media Lab, Stables are “cookie-sized computers with motion sensing, neighbor detection, graphical display, and wireless communication. They act in concert to form a single interface: users physically manipulate them - piling, grouping, sorting - to interact with digital information and media. Siftables provides a new platform on which to implement tangible, visual and mobile applications ..." more
Siftable Video from about one year ago (YouTube)