Matthew Weir O'Phinney had the chance to present the Zend Framework during a meeting he attended of his local PHP user group (BostonPHP) as a part of a series their doing.
Horde was also represented as part of the evening's fare. It was the first time I've attended a UG, so I got the double whammy of that and being a presenter. Oh, make it a triple whammy -- Boston is a 3+ hour drive from the Burlington, VT area I now call home.
He mentions a talk that Chuck Hagenbuch (of the Horde project) gave on the current state of the project and a bit about his presentation (including some portions that pointed out problems with the Zend_Db component). You can check out this and the rest of the contents of his presentation here [pdf] and here [mp3 podcast].