While I'd love to see a modern equivalent of the Apple II (that has nothing to do with Linux), I just don't see the hacker spirit figuring too highly in Apple's current direction.
I'd assume anyone who actually listens to music is likely to already have an mp3 player with more capacity than this... unless it can hold more music than my phone/ipod/sd/whatevericarryaroundwithme(tm) then I don't really see the point.