Having browsers intelligently render `text/markdown` sounds like a great idea. And while we're waiting on the browser implementation, maybe we can find some sort of temporary workaround to send a markdown parser to the client?
Maybe we could just send the raw markdown anyway - it might not be pretty on all clients, but it should be _legible_ on all clients.
Or maybe we could send markdown if the user agent included text/markdown in the request's Accept header, and pipe it through a markdown->HTML filter otherwise.
I would love to see some kind of native markdown support on the web.