I’m thinking about extending http://wmusers.com/forum/showthread.php?t=4142]PackageDoc to create PDF and/or RTF output. The approach would use XSLT and FOP. The intent is to create a service reference for custom packages that looks similar to the wM Built-in Services Reference.
Before diving into this, as it looks like it will more than a few hours of effort, I wanted to guage the interest in such a tool.