gamer, they would be controlled by a computer. The onboard Inertial Measurement Unit (IMU) on each nanoquad would be used to calculate their postion in space and the computer would control each nanoquad's position based on that.
Looks very cool. It's a great proof of concept, and you need to have everything right at this level before you upscale to quads that can erect bridges/buildings and other useful things.
Yeah pretty much agree with the battery comment. Anything like this fails instantly because nobody has ever invented a decent way to power a portable device. I got into RC choppers last year, and the battery thing quickly kills your enthusiasm.
Stop inventing BULLSHIT, and make a breakthrough in science please.