I've taken Buzz off the Marketplace and replaced it with Music Buzz, which is the same thing, but free! The ecomonics of the app store are worth noting: Buzz, priced at 99 cents, received 5 downloads in two months. Music Buzz has already been downloaded 1000 times in the last two weeks!
Here's a description of the app:
Find music, news and more about the bands you love. You'll be amazed at the latest buzz and music (remixes, bootlegs and more) that the Music Buzz application will discover. Please give it a try!
Here's a screenshot: