Trillian este un client Multi Instant Messenger ce suportă numeroase protocoale precum Yahoo! Messenger, AIM, WLM, ICQ, GTalk. Se poate utiliza online și ca aplicație desktop pe PC-uri.

Recent, Cerulean Studios a anunțat o versiune alpha a acestei aplicații ce rulează pe Mac-uri, Trillian for Mac.

Trillian for Mac Features:
* Networks: Astra, Windows Live, Yahoo!, Facebook Chat, AIM, ICQ, XMPP, Google Talk, Bonjour, MySpaceIM.
* Contact list: identities, groups, MetaContacts, searching, drag-and-drop, inline renaming, avatars, service icons.
* Quick ‘click-to-type’ nickname and status changes, including iTunes tracking.
* Standard Trillian iconholder and avatar display.
* Smart tabbed conversation windows (tabs on demand) with typing indicators, bubble view, emoticons, links.
* Login screen and support for multiple accounts.
* Basic preferences screen, connection manager, full suite of per-connection preferences.
* File transfers and a file transfer manager.
* Activity history framework – logs are being written to disk in standard Trillian format (XML, LOG).
* Support for most standard Mac hotkeys for flipping through windows, opening preferences, etc.
* Basic dock integration and badging.
* Auto update.

Fiind o versiune Alpha, dezvoltatorii au anunțațt că încă se lucrează la: Social network “feed” integration for Twitter, Facebook streams, Mail integration, customization options, Group conversations, Growl integration, “Status Item” support, Activity history viewer, Voice and video support and Setting your personal avatar.

Poate fi descărcat de pe pagina oficială [Trillian for Mac].