I like the idea and probably would use it, provided it ISN'T locked into CGI::Application.
While I can appreciate that that module is good, it has never fitted how I create/build/operate dynamic websites. While working for Questions (QIIS) I did develop an Identity module that handled all the user, cookies and session management. As I use a plugin approach (shamelessly stolen from my experience of designing an EJB application a few years ago), it means website interfaces can appear the same, but with one having the plugin and the other not. I could also add/remove the plugin on the fly, which a tie in to CGI::Application wouldn't do.
I might be motivate to send some patches once you have a working module :)
--
Barbie | Birmingham Perl Mongers | http://birmingham.pm.org/