Blackboard has changed the licensing for Blackboard Mobile Learn. The free version is no longer available. They have two pricing models. One has individuals paying for it. The other has the institution paying for a site license. A site license has been proposed for the University of Miami. Unless/until that is approved, paying the fee personally is your only option at this moment.
If a site license is purchased, it will be effective from that date. No refunds will be provided to people who purchased individual copies. The EARLIEST the site license could be active appears to be summer 2013.