gsframe isn't a Content Management System, but a framework that could be used to easy create portals.
It consists of a controller module (that can work with apache's mod_rewrite) that fuses a rendering library (smarty), a database astraction layer (expressly designed), and the power of php.
On this we made an easy to use module interface that can be implemented from anyone according to his esigences.
It's included a login and logout sample module that manages the whole portal session system.
It's developed using php, and it will be released under GNU/GPL licence, version 2
It can be used from anyone that need to build a flexible portal from scratch.