The gallery and the user registration. The whole site tilllate.com is now running on Trevi, our extension of Zend Framework. With a reach of 2.5 million unique clients a month, tilllate.com is one of the world's biggest installation of Zend Framework.

They talk about the two upgraded parts of their older system - the move up to the Zend_Db database abstraction layer and a change to use memoization in the Zend_Date and Zend_Config components.