Credit:
The application is free to download, but to be able to stream music you'll need a $15 per month Rhapsody To Go subscription. The music quality is, unfortunately, not too high: 64kbps, even over WiFi; on the other hand, at least you won't be spending too much on data traffic. The catalog on offer, however, is extensive, as you can choose between 8 million tracks (iTunes, for comparison, holds over 10 million tracks in its store).