Do you have any plans to support automatically backing up music between devices? Current solutions seem to solve either the "play anywhere" or "keep your music safe" problems, but not both.
Ideally, I'd like something with the following characteristics:
* Syncs music like Dropbox, except does it peer to peer between my own devices so I don't have to pay for space. My wife and I both buy music on both our computers and both our iPhones, and keeping a canonical repository of it for backup and safekeeping is a huge pain.
* Lets me choose which artists/albums to sync on to constrained space devices, for offline play. It should take me 2 seconds to say "I want Iron Maiden and Blind Guardian on my iPhone while I'm camping this weekend." Lets me do this from any of my devices.
* Lets me stream music without syncing it (like Audiogalaxy currently does).
* Lets me make tracks/playlists available to my friends for streaming (licensing issues around this one are tricky, but of Spotify can do it, it should be possible.)
I would LOVE something like this.
So far, the only thing I've heard of that even comes close to the spirit of this is iTunes Match, whenever that finally happens.
Ah, the good old days of free mp3s just laying around on the web...