I bought the MacBook Unibody almost as soon as it got on the market as my first Mac (yay) and I'm very happy with it so far. The battery time I get from the MacBook could be longer though, so when I read about the new 13'' MacBook Pro which now comes with a "new and better" battery, the thought came to my mind that there might be a possibility that this new battery would fit in the MacBook Unibody... I have looked on Apples website, I have googled and searched this forum but I have not found anything on the subject. Is the thought for some reason obviously stupid? Does anyone know anything about this?