Thilo Six <T dot Six at gmx dot de> sent a patch for cpoptions. See the discussion at http://thread.gmane.org/gmane.editors.vim.devel/32151
Josh Grams send a patch to allow the parenthesis comments at the beginning of a line. That patch also fixed a typo in one of the comments. Thank you :-) I have only tested the file with Vim 7.2, but I think it will also work with Vim 6.X.
Shawn K. Quinn <sjquinn at speakeasy dot net> send a big patch with new words commonly used in Forth programs or defined by GNU Forth. I also fixed a typo in closing words for class and object definition.
Benjamin Krill send me a nice patch to highlight "space errors" in comments (e.g. trailing spaces and/or tabs). Thanks :-)