In this new post to his blog, Manfred Webber shares an example he's put together to combine the PureMVC framework with the Zend_Amf component of the Zend Framework.
Since PureMVC is my framework of choice I could not resist creating a simple demo connecting PureMVC to the new Zend_AMF.
The sample application just responds to a button click by displaying a message inside of a text container. You can download the source that includes both the Flex and PHP sides.