My gf told me about this App called Tango. She said you can do videochat on 3G. I know that it is possible when it comes to At&t iPhones doing it on 3rd party apps, but I didn't think it would be possible when it comes Verizon iPhones. But Tango, it's a Free App, that allows you to do Facetime on 3G, 4G, and Wifi, and with Android Devices! I think it's an amazing app, and I love it.