Wow, I really, really like it. Provide options to open (upload), save and 'export as html' (with embedded CSS or at least a proper link to a stylesheet hosted s

Wow, I really, really like it. Provide options to open (upload), save and 'export as html' (with embedded CSS or at least a proper link to a stylesheet hosted somewhere) and I think you have a winner. You'd be on par with tools like 'Marked', that have the annoying habit of being Lion+ apps for no apparent good reason. Edit: BTW, I think you are doing your app a diservice by calling it "Github Markup preview". It's actually way more than that.