I know that recently certain carriers such as AT&T lifted the ban from FaceTime Video so that anyone can use it on a cellular connection vs wi-fi only as before. Do you guys think the same will hold true Facetime Audio feature in iOS 7? That would be awesome if you can use this over cellular as well. I don't see why not, since there are a lot of 3rd party apps that allow you to do this like Facebook, skype, google hangouts, viber, line, and the list goes on and on. But having this built into the core of iOS 7 would make this such an attractive feature and I'd be using it quite often.