I personally like it as it's the first I've seen that uses MATLAB. You know me, sorry . The NXTs are connected via USB cables. Unfortunately I don't have any more details than on that video.
RWTH - Mindstorms NXT Toolbox for MATLAB
state of the art in nxt remote control programming http://www.mindstorms.rwth-aachen.de MotorControl now also in Python, .net, and Mathematica