I think a hybrid is what is coming. Pilots can choose to carry plates or a personal mobile device....approved by the company/FAA, ie ipad only. Cost for Jepps will go down since a lot of pilots will choose not to use them so subscription will be less. No cost for the company on tablets since it would be personally owed. So it will be a choice. Pay to play basically. As long as IT get enough security in the system to make them happy, and agree, that is what I see happening. Wait for the Windows tablets in the fall too. IT departments love Windows since it requires little change to servers since almost everything they use runs on a Windows platform.