For a moment i was thinking this is some sort of a hack :) ?
no database? yet lobby and chat sessions.
apperently this script uses flash and php and takes advantage of the browser cache. don't get me wrong..There are no exploits or something crazy like that but it works.
I was looking for something simillar.
basically i needed an easy to install (and cheap!!) admin-to-user chat panel.. but where only admins can chat to the users and it does not bloat a huge database..
Some help was required to install it, since i'm not that php savvy but its done after a few minor php modifications and its working now :)