Apple has published the first advertising for the FaceTime feature of iPhone 4 dedicated to the Cupertino technology that can transform an iPhone into a video chat on its Web site.
On the notes of the song When You Smiling by Louis Armstrong, the commercial depicts how FaceTime shortens distances with loved ones. Face Time works only with iPhone 4 using a Wi-Fi, which means that data is using cellular network. It is important to note that currently the video chat is only possible between two iPhone 4 and requires iPhone 4 and a Wi-Fi connection for both caller and recipient.
Actually the iTouch 4g also supports facetime