wbmw, chipguy - Don't you think things are likely to happen a little faster, now that AMD has 2 full-fledged fabs to work with? Seems like they'd have a lot more leeway for development, and they've certainly learned some lessons in efficiency in having to do it with one fab in the past.
Well given Intel's NGA is an evolution of the P-M core, I don't see the big deal that AMD won't have a new ground up core anytime soon. The mentioned K8L could be as much of a difference as between P-M and NGA. P4 was a brand new core and look where that led. Perhaps Intel and AMD are becoming more cautious and using more proven u-architectures going forward.