Atom

• Atom
• Make sure Atom's core Markdown Preview package is enabled
• Markdown to PDF for Atom
• paste-table for Atom
• LibreOffice Calc
• (Optional) vim-mode-plus for Atom
• (Optional) Make sure Atom's core autosave is enabled.

I want this for publishing from Tomboy to Drupal (data.agaric), as Tomboy and AtomPub already work together:
http://flukkost.nu/blog/tomboyblogposter/

Ancient interest in the forums, and no response:

Implementing AtomPub for Publishing Nodes?
http://drupal.org/node/193167

Response from a maintainer of the now-in-contrib BlogAPI module: