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...