Oracle Application Express at http://apex.oracle.com has been upgraded to a pre-production version of Oracle Application Express 4.0. There's nothing like upgrading an instance of 8,000 workspaces and 31,000 applications to ensure that the upgrade works perfectly and what used to work in Application Express 3.2 continues to run flawlessly
As most users in the APEX Community have come to realize, this is one of the final milestones in our development cycle before release. So we're getting close. You can read about what's new in Application Express 4.0 here.
The participation of the thousands of people in the Early Adopter program since December has been overwhelming. We are grateful for all of the work and feedback and suggestions and bugs reported by everyone. The APEX Community is alive and well...and growing!