Just came across this when browsing around a bit. This Flex IRC client is a port of the Java-based PircBot.
Flex IRC Client aims to be a Flex / Flash based IRC Client. Currently most browser-based chat solutions are either proprietary or applets. Flex IRC Client wants to bring the power of IRC to the majority of the Internet-users without requiring a download or an install.
I know this client is still under development, but it could really do with a window showing some progress when connecting to a server. Also, a proxy of sorts would be nice since I get a lot of Security Errors when trying to connect to a server: “SecurityErrorEvent type=”securityError” bubbles=false cancelable=false eventPhase=2 text=”Error #2048: Security sandbox violation: http://ansuz.nl/toys/irc/FlexIRCClient.swf cannot load data from irc.efnet.nl:6667.””, probably due to no cross-domain policies being set on the IRC servers. Connecting works when running this locally 😉