Apple’s video chat feature will be free and not docked off your allocation of network minutes. This was expected by many as the service currently only works over the Internet via wi-fi, not 3G.
However, others such as Business Insider were reading possible meaning into the fact that it’s possible to switch straight into a video call from a voice call.
In other words, they thought that in this case, Apple might have kept the voice call going in the background as a back up in case someone’s wi-fi went down, hence you’d still be using minutes. But Apple told Business Insider:
“The voice call ends as soon as the FaceTime call connects. The FaceTime call is over wi-fi so does not use carrier minutes.”
So there you have it – another smart feature for the iPhone 4. However, when FaceTime goes 3G eventually, of course the picture is going to change.