Facebook Chat is available Everywhere

Facebook chat is available for those who use Macs(ichat) or even those who use Google chat. You can now integrate facebook chat into those apps even when you aren't on facebook! If you are using a multi-protocol IM client such as Pidgin, Adium, or iChat, set-up is really easy—you just add a new Jabber or XMPP account, the username being your username@chat.facebook.com, with your password being the same as your Facebook password. If you still haven't gotten a Facebook username (the tag that appears after www.facebook.com/ for your profile page) you'll need to go to your Settings page to enable it.Read more