MIT keeps cranking out those robots. This time they have one that can actually fold itself into almost any shape. The Milli-motein is the planet's smallest chain robot that operates under the assumption that a 3D shape can be formed by folding a long chain from subunits. The team does not yet have a perfect set of steps for the bot to follow, but because the experiment has so far proven that they can make an autonomously folding universal device, that certainly gives it merit.
Think of it as a kind of Swiss Army robot. Team member Ara Knaian is much better at describing this than we are.