Watching one of those futuristic programs on the science channel came across "Claytronics". It's hard to really discribe this research for a new technology. It is defined as programable matter. The best example I can think of would be the movie Terminator where solid robots can morph into any size or shaped object one could imagine. Well folks the whiz kids at Carnegie Mellon University are working on just that 'cantoms' nono material with computer built in that can take and change shape to any desired form.
I can only imagine what this new technology will do for the psyche of future generations. On the positive side are benefits in medicine, housing, energy, and a host of dangerous jobs that need non human replacments. On the negative side are the new weapons that could be created in a moments notice and like the Terminator would be unstoppable.
If you want to see some other interesting bits of the future: