I'm sure most of you have seen the T-Mobile commercials that poke fun at the iPhone 4's inability to make video calls outside of a Wi-Fi area. The tagline at the end of the ads is always "Introducing the new T-Mobile MyTouch 4G, video chat without needing Wi-Fi."
Although the commercials don't account for services like Skype or jailbreakers using the My3G utility, they are otherwise spot-on. Apple's popular FaceTime video chat service has been restricted to Wi-Fi usage since its inception last year, but that could all change in iOS 5...