There are a number of things I'm considering...
1. to play through an intro movie on first launch, and have the ability to disable that action next time (could have click to skip, but would like to have something cleaner)
2. This app will have a series of Maps, however, users are going to want to focus on a single preferred map. By default Map A will be displayed, but would like to be able to remember if the user is at location B or C... (would really like to explore GeoLocating to determine which map to display!!! Then, we could even include a You Are Here icon - but that may be beyond our current capability).
Those are the first two things I'd like to be able to flag. I'll let you know as other options arise.