I am thinking of a CMS / System / App base. I would like to start an initiative for whichever is best, or multiple of them. What are these?
1. CMS
Pluggable modules : pages, products, ...
Completely DB-manageable (lets you add any type of content, by modifying DB)
You will not be in search of "scripts" any more
As much as possible of management is done via web interface (incl. architecture etc)
2. System
Online host for web-configured apps
Salesforce + Google Apps + Wordpress.com, a combination of these
Domain, e-mail, hosting, caching, CDN, ... etc many management jobs are up to the system. Some can be implemented from start, some later.
You just deploy your app with any parameters you want, at any location(s)
Sounds utopic, I know.
But I also can't count how many people are struggling with such management problems.
Even if not completely obliterated, think of an environment in which many problems are pre-solved. And with great extensibility too, so you can plug your logic in easily.
Amazon EC, AWS and others can be taken into consideration here.
3. App base
Will be able to be used as a base for any (or most) ZF App (such as the above CMS), but it will not be a bare skeleton.
So?
- All are larger-scale thoughts.
- Any contributor, mentor, financer, teammate, etc are accepted.
- Any input is very welcome, such as feasibility, methods, approaches, what and how can be done?

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Sounds interesting, but I a bit confused of your exact scope.
With the arrival of Zend_Application I was thinking about a base application, where additional functionality could be added with modules. This base application would provide basic services like configuration and security.
Site composition (architecture?) would also be part of the base system. For the company I work for, we created a database driven solution for page composition that allows multiple actions to be combined into a single page. This system also has access control and navigation covered, so that you only see the pages your are allowed to see. At the time I developed that, Zend_Navigation wasn't built yet, but I suppose that could be reused.
Such a base system would have to provide ways for modules to add themselves to the navigation and possibly provide a administration environment where the module can hook itself into.
Maybe Drupal is a good example of a base system. Drupal is not Object Oriented however, it uses convention and hooks to allow modules to work.