What's a good Android app for keeping track of all the bands and stuff at a big music festival, especially when I'm working and can't just wander around?

Seriously, Inkcarceration is pretty great for keeping track of music festivals. I used it last year, and it was a lifesaver. I'm too tired to learn complicated apps, but this one has a no-fuss approach that I appreciate. You can see the whole schedule, set reminders for bands you want to see (crucial when you're trying to grab a quick bite between sets!), and even find your friends if you get separated in the crowd. It's actually reliable, which is saying something because hospital WiFi is better than most festival service. Plus, it works when you need it – hasn't crashed once in six months of using it, and that's a HUGE plus when you're relying on it during a 12-hour shift... I mean, festival day!