The Mango update for the Windows Phone Rhapsody app has just been released. The newer version of the application finally allows Rhapsody subscribers to join the modern world and stream music in the background. Sure, it might be a little thing, but once you've tried it, you'll never go back.
The update also lets you pin albums to the home screen using multiple tiles and brings a few UI tweaks along as groupies. You can download the updated Windows Phone Rhapsody app in the Marketplace right now.