Now that Apple has released a way to dual boot with nearly full driver support, I want to buy a MBP NOW! However I want the 64-bit proc, Meron I think it's named. Anyway, I've heard rumors that it will be backwarks compatible with the same motherboards the MBP's have now. Can someone please confirm this 100%? It would be GREAT to buy a 2GHz MBP now and then upgrade the proc on it to 64-bit for 64-bit Vista and 64-bit 10.6. Heck maybe even 64-bit Linux soon. Thanks!