My friend told me he wanted to upgrade his old MBP processor to the Ivy Bridge ones, when they come out. I told him that's not really possible because you need to replace the whole logic board and he has a pre-unibody 2006 model. Has any one ever managed to put a unibody logic board in the pre-unibody chassis? or even tried? What is the latest/fastest logic board (processor) he can realistically use in his 15"? I think he has the 2.16 GHz now. Thanks.