A partnership between app developers and event production companies would be great; I was at EDC Las Vegas a few weeks ago, and the promotion company, Insomniac

A partnership between app developers and event production companies would be great; I was at EDC Las Vegas a few weeks ago, and the promotion company, Insomniac Events, produced their own app for the festival. Sounds great, right? Only problem was that their app refused to display the event map and set times without a live network connection. With 300,000+ people in one place, you can forget about 4g, so despite downloading the app in advance, I ended up just using paper maps/set lists the whole weekend. Huge waste of paper and time.