Todotxt.vim is a project mainly written in Vim Script, it's free.
Vim does TODO-lists
This is a mirror of http://www.vim.org/scripts/script.php?script_id=3776
I've tried countless TODO systems but somehow I always end up back with my trusted TODO.txt. Now I've decided to spice it up a bit.
More info at https://github.com/Lejdborg/todotxt.vim