Filed under: Portable AudioWord on the street (and by street, we mean mostly British tabloids) is that Paul McCartney's deal to sell the Beatles back-catalog is done, and the Greatest Works of Musical Art Ever Recorded will be appearing on the iTunes store "within months." Of course, we've been hearing whispers about this for what seems like a million years, and since both Apple Corps and Apple are delivering "no comment" and "rumor and specul