My understanding (always questionable) is that the 'electricals' get massaged for power-gating and the new Turbo for AM3+.

And I won't be surprised if some enterprising OEMs get creative with AM3 BIOSes to enable Zambezi with reduced function on AM3 (if folks at XS don't beat them to it ).

AMD will huff and puff as they did with core-unlocking (but will secretly be doing back-flips of joy as BD-Zs fly off vendors shelves at high margins)