The Zeiss Cinemizer 3D OLED coupled with TrackIR 5 on a car racing sim. It doesn´t look dissapointing, does it?. What I do really fail to understand is, first, what are the displays on for?. Second, how did these guys taped the vid: from the displays? That would answer the first question, but then a third would arise: BTF is this vid about then, because I'd bet it is the right hand display action what the video is showing.
A huge downside: the FOV is a dissapointing 30 degrees. Like flying your 109 from inside your trouser leg.
Engadin.
P.S. At CeBIT this year, the guys from Carl Zeiss have shown this gadget with it's own head movement tracking device.