IChat
iChat is a third party AOL Instant Messenger client written by Apple Computer that runs only in Mac OS X and which is fully endorsed by AOL.It bears a brushed metal interface and uses speech bubbles and pictures that some advocates claim personify the online chatting experience.
In June 2003, Apple Computer announced iChat AV, a new version of iChat that adds voice and video chat capabilities. These capabilities are based on the industry-standard, but not yet widely adopted, Session Initiation Protocol (SIP) for video chat and audio chat.
