Adium

"Adium is a free messaging that can connect to AIM, MSN, Jabber, Yahoo, and more"
By SoftCns Editor: Multiple protocol instant messaging client witch provides an excellent interface for OS X

Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.

Partial address book integration, cool looking tabs, multiple protocols for instant messaging, and a compact contact list are some of the many features of the new Adium X.

Give it a try; we're sure you will like it.

Supported services:
. AOL Instant Messenger (Including ICQ and .Mac)
. Jabber (Including Google Talk and LiveJournal)
. MSN Messenger
. Yahoo! Messenger (Including Yahoo! Japan)
. Bonjour (Compatible with iChat)
. Gadu-Gadu
. Novell Groupwise
. QQ
. Lotus Sametime

Here are some key features of "Adium":

. GroupWise, Napster, and Gadu-Gadu
. Unlimited accounts, as many names on as many services as you want
. Draggable tabs; any number of tabs in any number of windows
. Highly customizable, yet very intuitive preferences
. Address book integration
. iTunes and other Applescript substitution
. Buddy icons in AIM, MSN, and Yahoo
. The beginnings of file transfer support for AIM, Yahoo, MSN, and Jabber and much, much more.

What's New in This Release: [ read full changelog ]

. Switched MSN implementation to Libpurple's recent addition of MSNP15: Fixes display pictures, offline messages, and the "Now Playing" status.
. Fixed 1-2 pixel overlap of contact list by its toolbar (#10074).
. Fixed escaping of the ' and ? characters for IPv6 Addresses (#11031).
. Fixed MSN personal messages being set to the status (ie: away, busy) (#10814).
. Fixed contact visibility issues (#10917).
. Fixed OTR messages to use the display name rather than UID (#10070).
. Fixed 'Lips Are Sealed' emoticon in the Adiumy emoticon set (#10996).
. Fixed contacts showing in incorrect group after combining (#11033).
. Show existing status message in status change window, rather than previous (#11034).
. New 'Bookmark Group Chat' and 'File Transfer' icons (#11030).
. Fixed Yahoo frequently disconnecting (#11097).
. Fixed hang when sending two consecutive messages (#11074).
. Fixed drop shadow in Stockholm and Gone Dark message styles (#9178) (#9480).
. Fixed visual artifacts in Smooth Operator message style (#10101).
. Fixed problems when linkifying URLs that contained an unescaped % character (#11059).
. Libpurple: Fixed a crash when parsing DNS-lookup responses with certain routers (p#7242).
. Localization updates.