i know that at least on the 8830 the player that imeem uses is not supported, you have to find some way to record the music u get from them onto your hard drive and then transfer it to your phone
They're working on the app and it should be coming pretty soon. It was only available for the g-phone, but now I-Phone just got it, so BB is next. Shouldn't be too long. I personally, can't wait to get my playlists on my phone!