Proprietary protocols are things from yesterday. Today, Opensource technologies are taking over the world! AOL / ICQ has just launched a test server using XMPP, an open technology. This means that youâ€™ll soon be able to talk to your ICQ / AIM contacts via Jabber. Google has already started using it. So whoâ€™s next? MSN!
You can try to log in to ICQ with the username firstname.lastname@example.org
on server xmpp.oscar.aol.com on port 5222. TLS is required.