The title of this post is what it is since I think this seems to be awesome for us Blackberry users on unlimited data plans. I still need to try it, but this service can stream your iTunes library to your phone. Will need a download. The only thing my Blackberry cannot do now is cut through a shoe like a Ginsu but pretty much everything else.
nuTsie.com! Listen and Share your iTunes Music, Playlists, Songs, MP3s and CDs - nuTsie