"Open-Sourcing Java Could Promote Interoperability," Says James Gosling (SYS-CON)
2. "Some have asked what IBM would get if Java were open-sourced: doesn't IBM already have the source?"
They would gain the loss of fear that Sun could take Java and make it proprietary and close the source, or start charging like crazy, and do something else thats crazy and locks people in. Open Sourcing java means that it becomes public domain, and no one has control over it.