This whole thing started way back in the '80's when Beatles Corp got a little pissy about the trademark infringement on the use of Apple's apple logo. A deal was struck allowing Apple to be Apple but in 2003, when Apple started getting into the music biz, the Beatles, who of course totally need the money, sued yet again.
Actually, it could be awhile before you could download "Everybody’s Got Something To Hide Except Me & My Monkey." While this settles the long-standing legal dispute, Apple now has to work a deal over putting their music on iTunes. Expect it to be sooner rather than later as Paul needs a lot more money to pay Heather Mills.