Barcelona successor: the 45nm Shanghai. The main points of interest out of the gate are HyperTransport 3.0, which was nixed late in the game on Barcelona, and six cores, which are meant to pit the chip up against Intel's upcoming six-core Dunnington chip. Where things get really exciting is a few months after Shanghai's late 2008 debut, when AMD plans do release a twin-die version, with 12 cores of happiness connected by HyperTransport 3.0. What does all that mean? Beats us, but we hope it's fast.