I found it quite confusing but it seems to take much inspiration from org-mode, is mature, and integrates with TVO (the vim outliner).
Some references : Viki : http://www.vim.org/scripts/script.php?script_id=861 TVO : http://www.vim.org/scripts/script.php?script_id=517 Some notes from Swaroop C H :http://www.swaroopch.com/notes/Vim_en:Personal_Information_M...