Yeah, you may be right about zend. They are a month or so behind on their roadmap to version one:
http://framework.zend.com/issues/secure/BrowseProject.jspa?id=10000&subset=-1 - right now they're at 27 of 76 issues fixed for version 0.2
I think it'll still be ready to cook by winter tho - what's gonna drag is web hosts moving to php5+, it's only been out a year or so