The world's most widely used smartphone operating system, Symbian, is now completely open source. The Symbian Foundation made the announcement this morning that the entire Symbian 3 platform's source code, which is the result of more than ten years of development, is now openly available to any developer under the Eclipse public license. Some parts of the platform were available under open source licenses for Symbian Foundation Members in 2009, but now the platform is available to everyone. The Symbian Foundation planned to complete the open source conversion of its 33 million lines of source code by June 2010, but they beat their own estimates by completing the transition to EPL four months early. They have also finished open sourcing most of their tool chain. The Product Developer Kits for Symbian 3 that are currently available contain some packages that are open, and some that aren't. The fully open source toolkit should be available within a few weeks. Read more: DZone