In this appendix, we've seen a bit further more on what makes Play! Framework 2 so great. We took the opportunity to have a look at the core ideas and also compared them to the mainstream ones. We also had an overview on the new features brought by this second version, and what has been changed from the first one.

All this leads us to discuss and to list which specific functionalities are worth considering when envisioning Play! 2 in a new project, for instance.