OMG, that would be teh win.  Wonder what the dual channel would do for a dual CPU platform, obviously doesn't do much for a single CPU environment, that's already been "proven" with the first two nForce chipsets as I think it has been concluded that a single Athlon doens't know what to do with that much bandwidth.
Too bad the Athlon seems to be inevitably trumped by the P4's massive FSB bumpage to 200MHz and HT...  if the nForceFX is real, then that will only help the Athlon survive a little bit longer in the dual cpu world...