Live demo up here if anyone else was curious: http://www.pssdbt.com:3000

If you want to run it yourself on a public-facing server, you'll need to change the connection to Socket.IO on line 2 of /public/js/script.js to point to your server instead of localhost. I also had to edit /views/themes/default/room_list.jade and put the 'each room,key in rooms' bit inside of an 'if rooms' statement because that was throwing an error.

Also worth noting, nothing is filtered (you can send <script> tags for example and they'll run for everyone).