Sharing to social networks is also built-in, so it's a breeze to post your favorite new tracks to Twitter or Facebook -- or notify friends via BBM, SMS, or email. For those of you who like to sneak a listen before pulling the trigger on a digital download purchase, Amazon does offer previews -- though they're only 30 seconds long.
There is, of course, one big downside -- the app and store aren't available to users outside of the U.S.
Download Amazon MP3 [AppWorld]
Gallery: Amazon MP3 for BlackBerry