This is where the GPLv2 (Gnu General Public License) license -- which governs how the software can be copied, distributed, and modified -- has been critical to the success of the project. The license requirement that changes to the code be made available, has been key to avoiding fragmentation that plagued other open source projects, Torvalds said. Under the GPL, developers can rest assured that their code will remain open and won't be co-opted by corporate ownership.
"I love the GPL2," Torvalds said. "It has been one of the defining factors of Linux."