Self-assembling flying vehicles

Here's a very special robotics development: Its 4 independent robots but which are capable of regrouping together to move and even fly off. Invented at the Swiss Federal Institute, these robots can communicate amongst themselves and know precisely their positions in relation to each other. Once regrouped, the data is analyzed and shared in order to optimize the movement. It's therefore a sort of group of intelligent robots which can merge into one super-intelligent unit. This mobile mega structure could be used to move loads in difficult-to-access places, the robots only assembling once arriving at the destination which could allow the system to reach any region or hostile place. http://www.youtube.com/watch?v=7iHZKMDvdNI