> You can no longer communicate with Google users with the XMPP client of your choice. They require you to use only their client. That's not quite true. Goog

> You can no longer communicate with Google users with the XMPP client of your choice. They require you to use only their client. That's not quite true. Google Talk is still available, and you can use that in place of Hangouts, and you can use third-party clients with it. However, you cannot use third-party clients for group chats, and you cannot speak to users on other XMPP servers (there is no true federation).