Well, it looks like BlackBerry's banking on another BBM to pull it out of the enterprise-only lurch, and this one should be like music to your ears. Earlier this week, we reported that RIM was readying a new music service, and now All Things D is giving us some juicy (unofficial) details on the tentatively titled BlackBerry Music. The publication says $5 a month will give users access to 50 songs that they can share with their BlackBerry-toting friends (also signed up for the service). What's more, it could be officially pumping the
