April 30th is ok for me except that I won't provide a minor release. There will be a lot of new features and an API refactoring in Social.
Regarding the examples I could provide something better than the "contentieux" application. I worked with Antonio Goncalves (leader of Paris Jug and Java Champion) and others on a Java EE 6 petstore :
https://github.com/agoncal/agoncal-application-petstore-ee6. It is a pure Java EE application but I could fork it to integrate Seam in it and also build an EAR version...
But I'm not sure to have enough time to do this for April 30th : I have 3 talks on Devoxx France and it eats me a lot of time. Help would be welcome, especially on the front.