It was never open source in the sense of the OSI (Open Source Initiative) definition, but the source code was available to the public for a while: > https://en

It was never open source in the sense of the OSI (Open Source Initiative) definition, but the source code was available to the public for a while: > https://en.wikipedia.org/w/index.php?title=QNX&oldid=730827552#History https://en.wikipedia.org/w/index.php?title=QNX&oldid=7308275... "In September 2007, QNX Software Systems announced the availability of some of its source code. [http://www.qnx.com/news/pr_2471_1.html http://www.qnx.com/news/pr_2471_1.html] On April 9, 2010, Research In Motion announced they would acquire QNX Software Systems from Harman International Industries. On the same day, QNX source code access was restricted from the public and hobbyists."