iChat (formerly iChat AV) is an instant messaging software application developed by Apple Inc. exclusively for its Mac OS X operating system. It has audio, video and screen-sharing capabilities as well as text messaging. It uses a XMPP-like protocol, Bonjour, for user discovery, and it also allows for LAN communication.
iMarck90 a Blogger, who initially reported about this news on the Yahoo Client working with Voice and Video Chat. After Adding Microsoft Bing and Yahoo search to Safari on the both Desktop and iOS and also adding this iChat Video Support, Apple is pushing topromote FaceTime as its Video Calling Solution.
The Apple Company has already renamed its iSight Cameras as “FaceTime” and also develops and distributes FaceTime as a Standalone Application in the Mac App Store, which is independent from the iChat AV App that bundles as part of Mac OS X Lion.