Research in Motion announced that a beta version of the Amazon MP3 store app is now available for BlackBerry handsets running OS 5 or higher. Those devices running OS 6 — officially only the Torch and Style — will also benefit from universal search compatibility, meaning that the store will show up as an optional engine for any query. A free download from the BlackBerry App World Test Center or directly from RIM, Amazon MP3 beta allows users to browse and download tracks over cellular or Wi-Fi connections, although handsets without built-in storage require a microSD card for purchases. Moreover, the app hooks in to BlackBerry Messenger, letting customers quickly share links to particular tracks.
The Amazon MP3 store now has apps for Android, Windows Mobile, webOS, and BlackBerry, but not yet Windows Phone, and an iTunes version will probably never come because it duplicates core iOS functionality (i.e. it would provide unwanted competition for the built-in iTunes store app).