I think that's the Scorpion tilt body. A trifle more complex, eh what?

The freewing seems to me like it's a flying wing with a large body hanging under it. The large body being needed to carry the bigger cargos like people and stuff that full sized aircraft are expected to handle. The tail is then along to stabilize the body only.

This would make for an interesting project if you want to learn more but the advantages of the system apply more to manned flight rather than models IMHO. The only real model based advantage that I can see may be the anti stalling bit.

The Scorpion is very cool but that's a whole new scale of technology with lots of problems to solve.