But only for large, block-transfer reads. Other forms of transfer seem to be pretty much a "wash" (with even some wins for the new system).
Frankly, without some public statement from Apple (which isn't likely to happen) or a REALLY GOOD confirmation that some of the new 13" or 15" MacBooks Pros are running at 3.0Gb I'd say that we have beaten an already dead horse even more dead.
It would be nice if someone could produce a real-world result that showed a significant performance difference between the 1.5Gb and 3.0Gb interfaces. Of course, to do that you'll most likely need one of the better (faster) SSDs and run that same SSD in both units.
i will take care of this in a few hours