Heh.
I was wondering just HOW you'd get that kind of transfer speed on a current, mainstream PC, and then remembered those rates should be possible with the new PCI Express 2.0 and SAS/600 standards due out later this year....
So it's not all for naught then, I guess!
T'would be nice for fast-flash drive backups, but then... they'd be limited by the speed of the data coming off your old-fashioned "normal" hard drive!