MIT is working on a “dynamic shape display” technology through its new Kinetic Blocks project that basically utilizes pin “pixels” to build simple structures out of blocks.
Kinetic Blocks works in association with a Microsoft Kinect by receiving spatial information in the display then responds to physical objects.
The display can easily detect, orient, and stack blocks, and even disassemble structures in real time, not to mention being capable of being pre-programmed to build structures.
Essentially, Kinetic Blocks is using physical data to build whole new things in the real world, which is an awesome use of technology.