ZF2-Style-Facebook-Service is a project mainly written in PHP, it's free.
A Zend Framework Style Facebook layer, using current Zend Framework 2 components and coding standards.
This is meant to be a basis for a forthcoming Zend\Service\Facebook class for the Zend Framework 2. Currently very much a work in progress, any comments and criticism will be greatfully received to the ML or in IRC.
\Spabby