Boy, that bike is sick. The point of lightness is acceleration, which you lose on such a sketcky machine, 'cos you'll never dare to stand up and hammer. Something will flex like crazy or crack...
BTW, I'm pretty sure the wheels are heavier than Lightweights despite the Ti spokes and carbon nipples. (How the Łł$°ˇ^˘ do you make carbon nipples, for God's sake???) The Ventoux set weighs 950g or so.
The track version of that thing could be 6-7 pouns, I guess. Boy, I'd love to ride that once.