Has PastryKit been successfully implemented by anyone other than Apple?

Question

Has PastryKit been successfully implemented by anyone other than Apple?

This article and others give a detailed breakdown and source code of PastryKit but has anyone actually got their own content into this framework?

http://davidbcalhoun.com/2009/pastrykit-digging-into-an-apple-pie

Answer 1

They never officially released it so I doubt you can simply grab it and use it in your own project. Assume it is (C) Apple.