The big reveal at today's "what's next" Spotify event? Apps. So, so many apps. As anticipated, the Swedish music streaming service launched its very own platform for third-party developers. The program is launching today in beta, with a number of partners, including some high profile music names like Rolling Stone and Last.fm along with some relative new-comers to the scene, like SoundDrop and Sharemyplaylists.com. We had the opportunity to play around with a number of these new apps at the event, and don't let the fact that our