They did say they'd get more speed from Agena as the troubles apparently had to do with the ccHT used in the chips for multi-processor systems.
Yeah, but unfortunately, they also said Barcelona comes first, then comes Agena. AFAIK, Agena is slated for a november introduction, but "real volume" comes only in 2008.
It might be that AMD's HT tech will still give them a healthy edge when it comes to competing with Tigerton; however, I doubt that that would be the case if they don't get >2Ghz out the door.