The app is all about letting you pull up a handful of maps quickly, checking out the traffic situation on each, so you can decide which route to take to or from work. I need an icon that conveys the map collection idea, along with a (2/3/?) color scheme that I can leverage in the app. My tentative name for the app is Map Locker, which lends itself to an easy branding and positioning, but I'm flexible if you come up with a better "map collection" motif.
The app is utilitarian in nature, so the design need is relatively minimal. I'm primarily looking for a strong icon that will stand out in the App Store, and convey the (hopefully) unique offering of this app.
I'm attaching a screenshot of the current work-in-progress. The buttons along the top will change as I refine the experience. The user will be able to Add, Remove, and Save maps, and navigate between the different saved maps.