I think that's quite interesting. One thing that turns me off from TIR and facetrack, however, is that you're looking out the side of your eye to see the screen as you turn your head.
Too bad there's not a way to track position and use monitor glasses as well. That way you actually look right, and in your glasses your view pans right.
Is there anything like that? Something that simulates moving around and seeing in that direction as you should? (hypothetically, that is... I can't afford to change how I fly, so I will stick with hat+up for now)