Best internet radio app, hands down. Smartly auto-suggests music based on other artists you like. Both on the go and while at home. Streams well over EDGE and 3G. Free. What more could you ask for?
From The App Developers: Pandora Radio is your own FREE personalized radio now available to stream music on your iPhone. Just start with the name of one of your favorite artists, songs or classical composers and Pandora will create a "station" that plays their music and more music like it.