Integrate Silex into symfony2 full stack (without pimple and without the services providers ... because we already have awesome bundles :>).
Note that this doesn't use Pimple, so you'll have to register your services with the DIC.
My experience of silex is that it's very fast to write a few controllers, and have a website working, but as soon as you need some advanced functionality (already available as a bundle for example), you need to write a service provider, and you end up loosing time writing service providers.
The idea here is to define your controllers like in a silex application (fast prototyping), while keeping symfony 2 full stack advantages (fast advanced feature integration with bundles).
I started a symfony2 silex distribution using this bundle at https://github.com/adrienbrault/symfony-silex-edition/compare/2.2...2.2-silex . You can view a diff of what's needed to integrate the bundle into your app and use it : https://github.com/adrienbrault/symfony-silex-edition/compare/2.2...2.2-silex .
Still a WIP, no tests, and still part of the Silex\Application interface to implement :)