Tag Info

Have you tried HipChat ? Selection from the features page : desktop and web applications free native apps for iPhone, iPad, and Android with push notifications for imporatant messages. send and receive 1-1 chat messages on any phone via SMS. get Bob's attention by using @Bob in a message. Customize mention notifications to be sent in the ...

I'm pretty sure it's not possible to do it using the native Gmail client. You could achieve this using a third party client like Adium (on Mac) or Pidgin (on Mac or Windows). There is also this tutorial that explains how to import your contacts via PSI messenger, but I find it rather cumbersome.

They only support client to server XMPP, not server to server XMPP. http://developers.facebook.com/docs/chat/: Facebook Chat should be compatible with every XMPP client, but is not a full XMPP server. So you can use any XMPP client for the Facebook Chat, but you can only chat with other Facebook users. Which is a pity. Welcome to the 90s.

There are some browser extensions with this function [Chrome] FB unseen: https://chrome.google.com/webstore/detail/ihcedcpmfdpjijiamkaeaefgfagnnpei [Firefox-userscript] Facebook Stealth: http://userscripts.org/scripts/show/136261 Or block this url in any adblocker: facebook.com/ajax/mercury/change_read_status.php

Meebo lets you log into multiple accounts on the following services simultaneously: AIM Yahoo! Windows Live Messenger Google Talk ICQ Jabber There's a web app client, as well as native clients for iPhone, Android, and Blackberry, and you can be logged into multiple devices at once.