I've had the iOS 7 beta on my phone since June 10th, and have had very few issues with it. About an hour ago, the iPhone died and I got the red battery saying that the phone needed to be plugged in. I plugged it in, and it has been charging for a half hour, yet the red battery is still there when I click the home button. Do you guys think that this is an issue or I should give it some more time? Has this happened to any of you guys?