I will take a look at it when I’ll get some time.
Meanwhile, could you outline unique features that present in Zend_Layout and don’t exist in Magento, (...)
I haven’t studied in depth the way rendering is done in Magento, xml file describes page structure… in order to integrate “blocks” in the finale page. The main feature of Zend_Layout are placeholder already defined for the rendering view (like Registry I guess), what is comparable of blocks are registered in the Zend_Laout placeholder and later called to be rendered in the layout/template.
Some Helpers are already defined in order to have shortcut to special placeholder like title, meta, script, style or even doctype.
In fact I feel that xml configuration in Magento (used to define blocks and pages) implied that the developper take time to leanr this special conventions. But if this rendering was more close to what can Zend_Layout handle it would probably be just on step learning.
I already begun to use it on other projects and it would be nice that Magento rely on Zend as much as possible?
(...) and would be worthy of manpower resources to be incorporated into Magento?
I’m not sure to understand what you mean? can you be more precise please…