More open questions
* What do search engines think of loads of redirections?
* Where do we intend to stop using speaking URLs and start using computer-geekish URLs?
* I'd rather use a proper name than a perl-ish construct for the redirect page. URLs like object/1234 are better than o/1234. And object itself is a geekish term too...
A tcl function on the site-node cache that gets passed in a package_id could return a full url with the proper stub and be an efficiently implemented solution as well - if done on the tcl layer. (Dave's idea)