The Hillary prediction may just occur; however, Obama would not run for VP. His ambitions are for the presidency and he would not want to mess those up. FWIW, I'm not so sure he isn't going to give her a run for her money.
I do think 2 years out is a little soon for such a madam president prediction. She has always been a concern, and we really do need to see what a mess a dim congress makes of things.
I tend to think Hillary will pick someone other than Obama for her running mate. She'll have the black vote and Illinois anyway so he doesn't add that much to the ticket, whereas someone like Vilsack, Bayh, or Richardson might swing some borderline states her way. For Obama, I don't know if being VP would help that much if his ultimate goal is to be President--it might be better to stay in the Senate, or hold a Cabinet office.