At Mon, 16 Oct 2006 09:31:48 +0900, Kevin Olemoh wrote:
> 
> Is there a port of the ri plugin that is available for Vim for Emacs?
> For those of you who don't know what I am talking about the plugin
> provides the class documentation for ruby in vim's help document
> format.

You're probably looking for this:
  http://rubyforge.org/projects/ri-emacs/

Not a port, but an independent project if I'm not mistaken.

HTH,
Ruben