When the OpenSolaris Governing Board issued their ultimatum to Oracle on July 12, few thought it would have the desired effect of saving OpenSolaris. The board sent a message that if Oracle didn't start to show some interest in OpenSolaris by August 23, they would disband and leave OpenSolaris without leadership and guidance. That day arrived and the board did as they promised.
This step foreshadowed the inevitable and on August 13 Oracle announced that it would end all support and access to OpenSolaris effectively driving a stake into the heart of OpenSolaris and the governing board. So, it was with little doubt the board would have no choice but disband.
rest here