Trillian� is a fully featured, stand-alone, skinnable chat client that
supports AIM, ICQ, MSN, Yahoo Messenger, and IRC. It provides
capabilities not possible with original network clients, while
supporting standard features such as audio chat, file transfers, group
chats, chat rooms, buddy icons, multiple simultaneous connections to
the same network, server-side contact importing, typing notification,
direct connection (AIM), proxy support, encrypted messaging (AIM/ICQ),
SMS support, and privacy settings.