Seems like everyone trying out node.js for the first time wants to make chat-room apps. At least this one doesn't have an immediately obvious script injection vulnerability :)

Interestingly, none of the chat apps I've really used are built on node: convore is python, mibbit is java, irccloud is erlang. Too new I guess.

If anyone's interested in a tasteful, persistent, web-based IRC client (ie, bouncer-like) - albeit not using node.js - mention HN in the invite box on https://irccloud.com/