I would like to see the integration of 3 fantastic programs:
1) PunBB
2) DokuWiki
3) phpFreeChat

You can get an idea of what it would look like here: http://www.phpfreechat.net/

This would allow super fast installation of communities and would be awesome.

P.S.
One name might be PunDokuChat.

It kind of grows on you over time...