IBM has called Sun's bluff over open source, responding to a challenge laid down by Simon Phipps (Sun's Chief Technology Evangelist) when talking to at EclipseCon 2004 in which he asked "Why hasn't IBM given its implementation of Java to the open-source community?" by offering to work with Sun to open source Java.

Sun should have expected IBM's response. IBM has been hinting at this for some time, and unless Sun really is keen to see Java open-sourced it was a pretty foolish thing to say.

http://www.ovum.com/go/content/c,43017

-Suresh