Markdown everywhere

Think there's a little momentum behind markdown lately?

This article from Mashable is already half a year old, and lists seventy-eight (78!) tools for "writing and previewing markdown"!  And its topic doesn't even extend to some of the very interesting services that use markdown, like leanpub and draft, or any of the numerous markdown-to-slideshow toolkits out there...

I'm convinced enough that I've just completed an initial version of a tool for working with markdown extended to allow citation using canonical URN values, and converting the source to generic markdown that any of these tools can process.  When I've polished the docs a little more, I'll post here with further notes on markdown and its increasing importance for scholarly work.