In a new post to his blog Adrian Schneider looks at a method for caching your forms in your Zend Framework application so you don't have to recreate it every time.
Generating a form is an expensive process in ZF. It's always bugged me that I can't find any resources on trying to cache the initial HTML anywhere, so I took a stab at it myself. I use a loader from inside my controller action to load forms and models, so I found that was a good place to start.
To help solve the problem, he's created a simple loader class (maybe dropped into an action helper) that, when used will cache the form (using Zend_Cache, of course) to keep the object instance where you can get to it later. The code to implement it and to put it to good use is also included.