Jaded, the PHP library I've been working on is now available on GitHub.
I talked about using Jaded as a lightweight model layer back in November. I've since decided to rip out the controller and view stuff. It wasn't coming along as I'd hoped, and I've taken to using Zend to get things up and running quickly.
Besides the model library, there's also a pretty handy autoloader and a database wrapper around PHP's PDO library. Over time I will be adding some other useful classes, including some Zend plugins.