Why quote from and link to articles based upon Zend press releases?
I like Zend as a company, I like the framework and I use Zend Optimizer 3.3 and Zend Guard to protect my released code, but that doesn't mean that Zend is the only option.
If we want to spread the gospel of MVC it's more helpful to show the options available and the range of resources that are out there. That way we are more likely to attract greater uptake of the MVC standard.
For example the fact that Zend doesn't have built in user authentication, ajax and active record support may turn some people off. Cake does and it supports PHP4 which could help some developers make the switch when all their legacy code is built upon older versions of PHP. The migration to PHP5 is not to be taken lightly if you have a large and complex web app already deployed on PHP4.
So I say show us all the options and everyone benefits in the long run including Zend.