This robots so cool, so simple, so many things you can do with it.  You think put enough of these together and you could programm it to morph into almost anything.  The first thing that comes to my mind is what happens when they make each one 1/8 of an inch wide or smaller and connect millions of them, imagine that kind of morphing.  Imagine the calculations needed to programm something like that, maybe some cool algorythms that make the giant ball of tiny robots morph into all kinds of complicated geometric shapes or something.  I'm a layman so it stops about their for me but still, cool little robots, I like the simplicity of them. 

http://www.youtube.com/watch?v=4oSavAHf0dg&feature=related