I've written an initial document for the fcgi module.
It's at:
http://www.s-direktnet.de/homepages/neumann/fcgi-ruby-doc/fcgi.html
or downloadable (which includes RD source)
http://www.s-direktnet.de/homepages/neumann/fcgi-ruby-doc/fcgi-ruby-doc.tar.gz


And there is a little error in fcgi.c.
Here's the diff:


107c107
< 		rb_raise(eFCGIStreamProtocolError, "parameter error");\
---
> 		rb_raise(eFCGIStreamParamsError, "parameter error");\




--
Michael Neumann