IBM Will Not Open Source os/2
IBM pretty much slammed the solid oak door on open sourcing os/2. "As stated in our response to your September 2005 letter we have considered the positioning of os/2 and open source several times in the past, and for a variety of business, technical, and legal reasons we have decided to not pursue any os/2 open source projects."
http://www.osnews.com/story.php?news_id=19194
