The next big hop

AMD seems to prepare the next big hop in the x86 leapfrogging game. There are some slides from AMD about the next-gen Opteron at the HardOCP webpage. Independently clocked cores are a very interesting solution. It would be nice to know if an single core can be overclocked when all other cores are halted ore underclocked.
At least this quad-core concept seems by far more sensible than Intel´s Cointreau Sandwich dubbed Kentsfield.