Hush! It's a secret!
By Johan Borgborg. Tuesday, December 6, 2011 5:32:04 PM
Since this summer we have been running an XMPP server for @myopera.com users. What this means is that you can fire up your favorite XMPP/Jabber client (I usually run Adium or Pandion) and enter your My Opera Mail address and password and start chatting.
We believe in openness, so our servers accept messages from any other XMPP server. Unfortunately, that isn't the case for all services out there yet, so you might still need multiple accounts to chat with all your friends
Don't tell anyone!