Update: Ok, so I picked my Z up at Vortech yesterday, wow what a difference 550whp makes!! I can light up the tires in 3rd gear all day now.
No, actually that was a joke, all kidding aside, it looks like the engineers may have given up hope on installing a centrifugal unit do to the lack of space under the 370z's hood. In my brief conversation with them, it could be done, but not with out some major modifications. Vortech is all about a clean and easy install and a simple, reliable kit. This just wouldn't fit into that category.
The good news is that the thought of building some type of kit for the 370 is not totally abandoned. They mentioned the possibility of a twin screw type mount (which they are now doing for several other cars) but the big concern would be if 370z owners would be receptive to changing out or modifying their hood to make it fit.
I myself don't have a problem with changing out the hood, as long as it is tasteful and close to the lines of the stock configuration. They will be in touch with me about this, just wondering how everyone else feels about it.
I know it probably boils down to bang for the buck, with the right price and generous reliable HP gains I'm sure we all could live with changing out the hood.