Initial reports are in: the new "Core 2 Dual" MacBook Pros are significantly cooler (temperature wise, wiseguy), quieter and faster.
Also interesting tidbit that makes sense to me: the lower RPM/higher density hard drives that ship in this batch are comparable in performance to the "smaller" yet higher RPM (thus more power drawing) previous 2.5" hard drives, due to the higher density. This explains why Fujitsu can rate their 4200RPM 200Gig 2.5" HD as having the same average seek times as their 5400RPM 100Gig 2.5" HD. Lower RPM also means less noise...
Just waiting on one more bit of information to come back to me...