New this year for Oracle Open World and Oracle Develop is the ability for anyone to submit a session abstract to the event.
The call for papers is open for the next two weeks here: http://cplan.com/oracleopenworld2009/cfp/.
We would love to see more developers do sessions about ADF and JDeveloper.
Share your best tips, introduce some cool things you did in your project, explain your architecture, or give your top 5 things to watch out for.
One way to figure out what your session should be on is to think what session would have been useful for you a year ago - and then do that session this year to help new developers.
Another great reason to present is that you'll get a free pass to the conference as a speaker and you'll be able to check out other speakers sessions.