I've been thinking about this for a while, but some work I'm doing at the moment with the wonderful WordPress has brought it to the fore. It's simple really.
Blogs makes publishing easy
WikiText makes formatting content easy.
So why has no one written a plugin for WordPress that drops in MediaWiki's wikitext parser so we can all write wikitext in our blogs?
Yeah, I know there's Markdown, and that other one, but wikitext is what I know, what everyone is going to know soon.
Daryl Houston looks like the right person to do it. How about it, Daryl?