philetus writes "New Scientist has up a story on Posey, a hub-and-strut construction kit that senses its configuration and communicates it wirelessly to a computer. From the article: 'If you gave Lego brains, you might get something like Posey, a new hands-on way of interacting with computers developed at Carnegie Mellon University, Pittsburgh, US. When Posey's plastic pieces are snapped together, an exact copy of the construction appears on a computer screen. Every twist of, say, a stick figure's arm is mirrored in 3D modelling software ... Each piece's plastic shell is stuffed with chips and devices for processing these signals. They are sent wirelessly to a computer using a low-power protocol called ZigBee. This means, bending Posey's pieces can make objects on-screen respond in real time. Right now, each custom-made piece has about US$50 (£25) worth of parts, Weller estimates. But if mass produced, it could be much cheaper.'"