Apparently, Engine Yard (the company who hired the Rubinius developer
and who is now funding it's development) also hired someone to work
full-time on "mod_rubinius" which is an extension for apache (similar to
mod_php or mod_python) which would, if completed, allow ruby to run
through an apache extension.
This would make deploying ruby applications pretty much as easy as
deploying a php application. In other words, check out your application
to the server machine and you are good to do.
The closest thing we have to something like this for ruby now is called
"Switchpipe" which allows a similar idea but is not quite as big an
achievement as a true "mod_rubinius" would be.