Jani Perhaps it's just my pervertedness, but I'd _so_ love to have my 2 favorite CMS's, #WordPress and #MediaWiki to marry each other to bring together the best of both, to let me blog with full wiki markup & editability & history. There are WP plugins to achieve some of this, but it goes so deep into the SW core that with 3rd party solutions you get maintainability risks (e.g. the markup you've used no longer works when the 3rd party solution gets abandoned).
So #Automattic and +Wikimedia Foundation, if you would be so kind.