Answering Sun's open source Java question is easy, and it's one word

Kudos to Peter Yared at ActiveGrid for banging on Sun Microsystems on open sourcing Java, or at least the JVM. And thanks to Dan Farber for amplifying the call. However, I can answer the question for Sun with a single word. Why not open source Java? The answer is: IBM.

Sun knows that if Java truly goes open source that IBM's vastly larger developer communities will be the world's busiest Java beavers. It is about control, friends, and not just a little envy. To the spoiler go what riches?