I'm actually about to release one at europaphp.org along with examples and a full documentation. It's very similar to the Zend Framework in conventions and coding standards. I'll post something when it is done; probably within the next week.
You can get the code at: [http://code.google.com/p/europa/source/browse/#svn/trunk/Sandbox - Default][1].
That link will bring up the latest svn for the Sandbox which you can just download and start using without any configuration.
Currently, it's faster than most any other PHP framework out there.
[1]: http://code.google.com/p/europa/source/browse/#svn/trunk/Sandbox - Default
