If you're heading to JavaOne this year you might also be interested in the unconference. The JavaOne and Oracle Develop unconference is a chance to participate informally with your peers who are talking about their favorite topics, or even present a technical session on an Oracle Technology or the IT industry yourself.
The unconference is only open to JavaOne/Oracle Develop attendees and will run in the same week. More information can be found on unconference wiki site.
JavaOne is being held on September 19-23, 2010 in San Francisco. More information can be found on the JavaOne website or you can always follow the conference Twitter feed.