Penryn is not much of a leap beyond conroe, so I don't see it as a big deal. What I'm really looking forward to, however, is Nehalem, since it will have the IMC and ditch the prehistoric FSB, amongst other things. That will wipe out the only remaining technological advantage AMD has right now, so AMD better have something real good up its sleeve by then. I'm hoping the K10 will be good, but with all the delays and silence from AMD, it doesn't look too promising.