Matthew Weir O'Phinney has posted the slides from a New York PHP User Group meeting that Mark de Visser (of Zend) and he spoke at:

Mark presented information on Zend's development stack and toolset (which I entirely missed, as I was still in transit), and I came in to give an overview of Zend Framework.

Matthew posted the slides right to his blog. They're in a browser-based slideshow system that will launch wen you double-click on the index file.