Although I love the idea of not jumping from music app to music app - it really is a buzzkill - I wonder if listn will be able to integrate everything that's out there. I personally love: thefuture.fm, songza, soundcloud and obviously youtube (where else can you get all the splendor of wrecking ball) but then that means listn is half way to my dream coming true. The partnership with RDIO, which I know is super popular, is definitely impressive.