Listen to unlimited free music on your iPhone. The free Slacker Radio App gives you access to the entire Slacker music library featuring millions of songs from thousands of artists. Listen to over 100 expert programmed radio stations or create your own custom stations directly on the iPhone. Slacker Radio is the best way to discover new artists and hear your favorite songs.

Sidenote: At the point of posting this program has been marked as beeing freely available without costs. As this program is hosted with the AppStore the status might change. Authors like to publish their programs for free for promotion purpose and then make it commercial. Also it could happen that the author decides to take the program down.

http://appshopper.com/music/slacker-radio