I am trying to set up a series of web maps for trails in a State Park close to us, so that hikers know where they are along their trail. I'd also like to create a "points of interest" layer so hikers can obtain more information on things they spot along those trails. I can create the map with all of these features easily. However, in the park, there is very little cellular reception. I think it would be a great idea for the public ArcGIS app to allow for downloadable maps for users (as they are in the ArcGIS Collector app) when no cellular reception is available.