Reason: Apple never backtrack. This means that once they start selling 7 hour batteries they won't bring it to say 5 for faster CPU. Same goes for GPU, and the Unibody is fine, so I don't see any upgrades, at best I'm guessing we will see some slightly newer graphics cards with better battery efficiency, and a bump up in CPU, but it'll stay at Core 2 Duo. I'll bump this after the presentation to prove I was right. EDIT: If anything, we might be seeing i5 in the 17''.