The necessity to know where to find showers, vendors, campsites, etc. at large festivals (Coachella and Stagecoach in particular) could be solved with a real-time map of resources. In addition to creating a map for attendees, the production side of the festivals could use Arc-GIS to keep updated on the progress of different departments with such an application. I worked at Coachella this year, and definitely saw the need for such a product.
