The Beatles are on the app store finally, but not as sound files but the Official Beatles Songbook, chords and lyrics on your iPhone or iTouch. This has been approved by Apple Corps and Northern Songs and MPL Communications (which had bought the early Dick James published Lennon/McCartney songs not owned by Northern Songs). Start downloading here, kiddos. Oh wait, one more thing. It’s only available in the Great Britain iTunes Music Store … sorry folks.
There are other “unofficial” Beatle apps in the US app store, including just a lyric app, but these are just fan-made apps, and not as wonderful and good and legal as something from the Fab Four themselves, right?