Great New.. So, Titan will be soon :)

• Protocol: XMPP or Jabber
• Username: saturngod
• Domain: chat.facebook.com
• Jabber ID: <your facebook>@chat.facebook.com
• Password: <your Facebook password>

• Port: 5222
• Server: chat.facebook.com
• Use SSL/TLS: no
• Allow Plaintext Authentication: no

http://www.facebook.com/sitetour/chat.php