One of the things about Open Source frameworks is that unless you clearly define and lock down the scope, the Creepy Feature Creature will have its way with the codebase, which will continue to grow features, which beget bugs, which beget bug fix releases with new features crammed in, ad infinitum. Developers then have to continuously upgrade to make sure their code still works and they have the latest and greatest capabilities. PureMVC was designed with the simple scope of achieving the MVC separation you can see visibly in the debugger above, and that you have hopefully seen the value of in this book. Additional features to handle common problems were to be added as a la cart utilities that you can....