And you're not going to be able to just slap on an EE chip because Sony's not just going to leavean empty spot on the board with leads for you.

Correct me if I'm wrong(which I may well be) but isn't this how the PS2 already works? The PS1 CPU is still there but routes it's graphics though the PS2 graphics chip? And isn't that what they plan to do with the PS3? Or am I way off base?