Thinking again about your dilema I've just notice that your carrier is ATT, they love to block certain apps., it is on their best interest to charge you for a Nav application or to disable the GPS, again looking to get the most of your money. It may not be included in your current OS is what I'm getting at, you may have to go BETA and install a different OS removing the vendor-xml files, then BB Maps should be there. Good luck !
