BBM Music is RIM’s music discovery, sharing, purchasing, and storage app for the BlackBerry.
The premium subscription service allows users download or stream up to 50 songs, limiting the number of changes to 25 songs each month.
Users who wish to have more than 50 songs can add their friends on the service so they can access other songs.
The more friends a user adds, the more songs they acquire. For free users, 30-second previews can be listened to.
The service costs $4.99 a month and is available to U.S, Canada and Australia residents.