This is my new iPhone app. Been working on it for ages now. I've always wanted a cloud music service I could just drag files into, and I realized Dropbox would be the perfect platform for it. The goal is to make a music player that's as good as the built in Music app - I think I'm pretty close

There's a fair bit of tech below the surface in this app, for stuff like song discovery in the background and getting track metadata. Happy to answer questions about that stuff.

Edit:

Geekwire posted about it: http://www.geekwire.com/2011/tunebox-listen-music-dropbox-ac...

30s demo video here: http://yearofcode.com/tunebox