Yeah, I talked about this in the link NFS4 gave. Pretty good info.
Most interesting was when AMD said: "It is very, very likely that we'll launch the Clawhammer in Q4 of 2002."
Quad SledgeHammers would destroy everything in it's path it seems, and a dual SledgeHammer system might actually be realistic for some people here if it's priced well enough.
I mean, what would you rather have? Dual Sledges or Claws? Of course the Sledges, but money may be a big deal.