I can really use this... thank you!

From the github: "kokoi watches for changes on the markup files (Markdown, Textile, reStructuredText...) in the directory kokoi is started, and if they change, automatically reprocesses and previews them directly in the browser. You will work on your files without having to leave your favorite text editor!"

Take a feature request? Could you add Emacs Org-mode as a format? Org-mode is a markup format similar to Markdown. Emacs, with org-mode, is a powerful authoring tool and outliner. It is a popular markup format with Emacs users.

Pandoc is able to output .org files but I am not certain if it can read org-mode as an input.