state of the wiki
You can write wiki bots to communicate with MediaWiki via APIs. I do some of this with User:VoidBot, and Nat has also done some. If you start working on any wiki bots, let me know and I can give your bot user the "Bots" permission (if you promise to be careful =)). Darkcanuck's RoboRumble server also has an API you can play with: Darkcanuck/RRServer/Query.
I do some neat auto-tracking of RoboRumble activity (which uses both those APIs), and posts its output to @roborumble on Twitter. I've thought about displaying this somewhere (Main Page or RoboRumble), but I'm not sure how to embed a Twitter feed in the content of a page. It's easy for @robowiki in the sidebar because I can just use regular HTML/CSS/Javascript, but the content of wiki pages is handled differently. I'm sure there's a way, maybe with a custom extension?