Unfortunately this application has too many shortcomings to achieve a high rating. The audio frequently mutes out while listening and if the application gives an error about not being able to download a file, it's impossible to quit the program. However, it is brilliant that it downloads the files to the sd card, but there should be an option to limit the amount of data that is cached. There is an option that allows you to listen to the tracks that were downloaded to the card, unfortunately this feature did not work for me. Froyo will be introducing private music collection streaming. If Subsonic does not get it's act together and fix these quirks, there will be absolutely no reason to use it for Android 2.2 and above. J. River Media Center 15 is currently in BETA and has a stream to Android feature using their J. River Gizmo app. This seems to be the only alternative currently. I paid for Subsonic but use J. River Media Center 15 (BETA) to Stream to my phone from my private library instead.