Microsoft has released Messenger for Mac 6.0 with the following features:

* Chat with Yahoo! Messenger contacts
* Add a status message that your personal contacts can see
* Share what you are listening to in iTunes with your personal contacts
* Create, send, and receive custom emoticons with personal contacts
* Send and receive custom animated emoticons with personal contacts
* Search for conversation histories using Spotlight
* Check the spelling in your instant messages

Download link- http://download.microsoft.com/download/0/8/3/083da6e6-0db8-4d62-a8c7-7e2b0ac70f4a/Messenger600.dmg