I'm planning to do a session at Oracle OpenWorld Unconference. Session is called - Oracle JDeveloper/ADF Real Life Story, more info and it's description you can find on Oracle Wiki page. Everyone is welcome - see you at Oracle OpenWorld in San Francisco!
Chris Muir also will have a presentation related to JDeveloper topic at Oracle OpenWorld Unconference. His session will be focused on testing and related stuff. This session is very important, because from my practice I can see, that JDeveloper features are not used so frequently during testing phase. So, just come and see how testing should be done! ;-).