We're looking for a way to prevent our apps from being installed on the BlackBerry Passport. Our apps are all developed for a 4:3 aspect ratio or higher, and on their 1:1 screen content is getting cut off. We'd prefer to be able to select/de-select it explicitly in the portal, as we really don't want to uncheck the "all non-Amazon devices" option, especially for those who already have our apps. It *looks* like setting in the manifest should prevent installation on the Passport, but it also looks like it will prevent installation on 4:3 devices as well, which would also make it a no-go. Any suggestions?