However, how easy would phpbb integration be. Currently I use PJIRC, for the chatroom that integrates with the forum. However it uses Java, which uses up so many resources!
When I say integration, this is what I'm looking for (I know that some features of integration require some of the freatures in the roadmap to be completed first).
1) Users register and automatically log in via the phpbb inteface
2) A list of users chatting can be displayed in the "who is online" section
3) User rights and admin levels are handled via the phpbb ACP
4) Future updates by phpbb shouldn't effect it, so as little phpbb code changes as possible. (Obviously template changes will be required).
The second one being the most important.
What do you think? (Btw, as this is entirely opensource and in php... if you could turn this into a proper mod for phpbb, and get it validated. It would bring in LOADS of publicity. I know quite a few other people who are in my position, want a simple chatroom for phpbb, can't stand flash, java, or complicated IRC servers).
Edit: Found that you have a solution to the 1st problem (not as secure, but still good)