Lets just hope the retail ones can keep the same numbers. And hope these aint another cherry picked ones like the 3Ghz Phenom that was earlier.

Also as said the 6Ghz already changed. Plus here is abit more about the rest:

AMD took care of that itself at an event in Austin this morning, where it showcased four overclocked Phenom II systems. TR editor-in-chief Scott Wasson was on the scene, and while AMD didn't allow attendees to take pictures, he jotted down a few details.

The slowest system—cooled with a heatsink and fan—managed to reach just under 4GHz with a 1.55V core voltage. With liquid cooling, AMD successfully pushed a 45nm Phenom II in another machine just over the 4GHz mark. That required kicking up the CPU voltage to 1.6V, however. For the other two systems, AMD took out the big guns. One was strapped to a phase-change cooler and reached the mid-4GHz range at 1.7V, while the fastest system managed to well over 5GHz using liquid nitrogen (which kept the core temperature down to a chilly -185°C).
So no 4Ghz without water. And even with phase its mid 4Ghz at 1.7V. And the 5Ghz+ was 1.9V.