The chat server was updated to the latest stable 1.x release.
A major chat system upgrade was performed today and the chat server is back online. Be sure to check it out!
For users that were experiencing issues logging in to the Rocket.Chat app on their iOS and Android device(s) this upgrade should address that issue as well.
I have performed some updates to the site, should make things a bit better for everyone.
There is also a new chat module.