Haha, thanks for the encouragement -- it's what keeps us going. Once we get a proper site up and running I think posting the roadmap might be cool. That said, we're fairly user-driven so the stuff requested in this thread is what's at the top of our list. There are at least three "surprises" though:
- auto correcting data
- over the air song recognition (like if hear a song on the radio and you want to know what it's called)
- wireless, two way sync (so you can play all the songs on your desktop and any songs you add or playlists you change on your mobile will propagate back to your desktop)