In preparation of an episode of boxlunchtraining.com I have been doing a lot of research into creating and using PHP's new phar archives. While I've not answered all my questions yet, I've been able to do most of what I wanted. One of the tasks I wanted to complete was to create a phar archive for Zend Framework. Here is a very quick intro into how I did it. Most of this is just a reminder for me but if you find it useful then I'm glad.
He steps through the process for creating the archive - making the package.php file, setting up the file to add an entire directory's worth of files to the archive (RecursiveDirectoryIterator) and the stub.php to get his autoload working correctly.