I ordered the JDeveloper3 and Oracle inform me it is on the way for 5 weeks...
SQLJ and VM in Corel in Oracle the latest feature, JDevelop3 is born for these.
JSP can easy to be build and debug through it.
But JDeveloper is lack of strong support for EJB.
If you use Oracle and Java, Jdeveloper is the smart choice. By using Jdeveloper, you can passs through the firewall easily, and build up very efficient thin-JDBC kinds.