As BlackBerry devices continue to expand beyond the classification of “business devices” that they have been pigeon-holed into in the past, RIM needs to ensure that it finds a balance between innovation and a game of catch up. Simply bringing their devices up to par with the current market won’t have the dramatic impact that users are looking for of course, but RIM certainly needs to cover the basics with their current and future offerings aimed at expansion. Canadian online music distributor Puretracks has used South by Southwest as a forum to announce its role in this process, as they will be launching a new mobile music store next month for BlackBerry devices. Developed in partnership with Magnet Mobile Media, the Puretracks BlackBerry store will initially be available on Pearl, Curve and 8800 series handsets and will utilize the AAC / AAC+ format. Northern BlackBerry owners will be saddened to learn that the service will be available only in the US when it launches in three weeks on April 1, but Puretracks hopes to make its offering available in Canada and other markets soon. The price model hasn’t been announced yet but hopefully it will be on par with the current Puretracks online offering averaging $0.99 per track and $9.99 per album. But how do you download songs? On EDGE? No thanks.