You seem skeptical, but consider this: He is planning for an advanced control system for the 1.4 L 350 HP 160 pound (plus turbo) engine that will power the machine. With that power to weight ratio (don't forget, he is using advanced carbon fiber for the structure, so even though I did not find any machine weight data, I'm absolutely positive that it is light enough to meet his goals) it should fly just fine. The only drawbacks might be the 1/4 inch CG range, lack of vertical thrust, lack of roll, pitch and yaw control, lack of lift in forward flight, lack of stability in all flight modes, but I'm sure that the little girl knows what she is, no, wait, HE designed it. Well, I'm sure that he knows what he is doing, and just needs some idiot, I mean investor, to send him some money so that he can revolutional aviation as we know it.
Gee, give the guy a break, he probably is a graduate of the Moller School of Fund Raising.
I think in his case he'd have to employ some advanced fly by wire techniques used in todays unstable (and therefore maneuverable) fighter aircraft. Quad-copters do it, so I would think the technology would be scalable. From reading his comments on the kickstarter page, I gathered the engines were 500 HP, but I could be mistaken. Also, the lift and vertical thrust systems are seperate (unlike something like the V22), so I'm wondering if he has some sort of NOTAR like system, but shooting air out the back instead of on one side. I applaud the guy for his effort (I mean, hes even built most of the thing!) but am also skeptical about any usable CG range. It is a cool looking concept though.
Whoops had to reread the page again:
"The rotors not only tilt forward and aft 90 degrees for high speed horizontal flight, but they also have the ability to vector ten degrees in all directions during vertical flight."