This initiative is supported by current shareholders and management of Symbian Limited, who have been actively involved in its development. Plans for the Foundation have already received wide support from other industry leaders.
To enable the Foundation, Nokia today announced plans to acquire the remaining shares of Symbian Limited that Nokia does not already own and then contribute the Symbian and S60 software to the Foundation.
http://www.symbian-freak.com/news/008/06/nokia_to_make_symbian_open_source.htm