This is how it COULD work. But does anyone think Apple - in true Apple fashion - might somehow try to fix up a way where folks couldn't do this? Who'd buy all new Macs if their processors could easily - and cheaply - be upgraded by the user?
Certainly isn't out of character for Apple to break, deny, block, cripple, disable, plug, lock, solder, hobble, etc. things like this if they thought it would affect Mac sales.
Summer 2007: "Hmm, I've got a Rev. A Intel iMac that I've had for nearly 18 months; I can buy an all-new iMac for $1,299, OR I can boost it to 64-bit, 3GHz goodness for a few hundred bucks...".
I don't know all the technical ins and outs, but are we pretty confident this is something Apple would allow and keep possible? Sure doesn't seem like their way...
