One of the big improvements I’ve noticed at Coachella 2013 is the number of charging stations available for smartphones.
There are a couple of different ways to charge. If you have brought your phone charger with you, there is a kiosk between Gobi and Mojave that can accommodate 256 phones.
Didn’t bring a charger? You can leave it in the Charging tent between Gobi and Mojave and leave it before picking it up later.
I saw another one of the 256 outlet ones in VIP earlier, too.