Going by the amusing demo videos of the new Apple iPhone 4's FaceTime app, which complements the front-facing camera of the recently-released handset, video-calling is apparently on the verge of becoming a mainstream feature!

For using the singular FaceTime app, users require an iPhone 4, a Wi-Fi network, and a friend who also has iPhone 4 and a Wi-Fi network. What is more compelling is the fact that FaceTime calls neither use up the minutes nor cellular data plan of the users.

Apple CEO Steve Jobs demoed during his earlier-this-month WWDC presentation that users can use a couple of options to initiate a FaceTime call - they can either make a voice call as usual and then kick off video chatting by hitting the FaceTime button; or they can directly initiate a FaceTime call, without relying on AT&T or their cell provider.

Currently, the recipients of a FaceTime voice call will be presented with a screen, giving them the option to decide whether or not to accept the FaceTime request. In case they deny the request, they stay on the handset without the video; and if they accept it, they are launched into the app straight away.

Even though the FaceTime app presently appears like a fairly low resolution, it still does facilitate two-way video-conferencing - a novelty that, by far, surpasses the stationary webcam!