I've been interested in selling my macbook and getting a macbook pro but would it be worthwhile to wait for the next revision? In other words will there be anything more to it besides a power jump or more ram? Maybe more hard drive space? And if the battery life is better how much better will it be, I'm the kind of person that keeps my laptop connected to the power all the time to conserve battery life so it would have to be quite an improvement. Would you guys say to expect the new macbook pro before mid-May, or later?