Ghostdown - Markdown editor from Ghost

This looks awesome. Markdown is just about simple enough to bridge the divide between people like me, who left to their own devices, would probably use LaTeX for most things, and others who mostly skew toward word. This kind of editor definitely reduces friction for people in the latter group.

One thing I'd love to see (and maybe it already does this) is support for Pandoc's Markdown extensions. Org-tbl is nice, as are the supports for bibtex refs. There's a handful of other niceties that pandoc has added.