Opinion? yea, I've got lots of those...
JDE as a stand alone company, tried to be operating system and database agnostic. Pretty cool concept. Oracle now owns a piece of the whole stack:
Hardware (sun/exadata, exalogic).
Operating System (their own flavor of Linux Redhat). Database (Oracle 11Gr2).
Application (JDE).
VM environment (Oracle Virtual Machine).
Middleware (Fusion).
Third party apps (Hyperion, Seibol)
Application server (weblogic).
Java (Sun JDK and BEA Jrocket).
Oracle wants you to go "all in" on the Red stack. My management team went that direction. So far, other than OVM, it's working fairly well.
- Gregg