Upon logging in, all layouts defined on that system will be downloaded to the device. The user can choose which ever layout they prefer, regardless of what the main system has selected. Now the Pastor can be looking at one layout on his/her iPhone while the band can be seeing another. Everyone can have their own layout using this system simultaneously.
Since iOS allows you to connect most iPhones, iPads, or iPod Touch devices using Apple's specialized HDMI output connector, you can feed the content of the Stage Display App to any flat panel or projector within range of the WiFi signal. Imagine wanting to put a Stage Display anywhere in a sanctuary and not having to worry about the effort, cost, and difficulty of running a line to it! This feature can eliminate the need for 100 foot plus cables, signal boosters, or Cat5 converters to feed the display, which can really add up in costs.