From the link:
http://www.overclockers.com/tips00579/
“In short, a 6GHz processor won't be a 6GHz processor; it will be two 3s”.
Just think about water cooling that bad Daddy. If present trends with water blocks continue one day we might see a water block with four nipples requiring two pumps to operate. Anyway those processor if they make it to mass market are at least two years away (my guess). Then again there could a major break through with the “power leakage” issue but I would not hold my breath at this point