Before I say what I want to say: I think that I should what it is and what it does first. I if you don't like my explination or just dont want to read this wiki or google it.
Kaillera is a program that is contained with-in certain (or in specific versions of better known) video game emulators. It is used as a server to let the emulator be played online. That means you play with someone online. This program will send you to a window with a list of chatrooms. Pick a room a and you can either chat, join in on a game like super smash bros. or marvel vs. capcom (for example), or host a game. Fair warning, hosts are always player one; so make sure you rig your controls to be the same for player one through four. If you need more info. regarding what some of the emulators are kaillera supported or how to use it, ask here and i'll post up the anwser.
I post this because I think this could be the start of something interesting. Plus, there is a program for kaillera that lets you make your on server/chatroom. This could make a good new alt. option (for chatting) for the irc section. Finally, before you question why is this topic here i didn't know weither to put it here or the segestion section of the forum.