I guess they&#x27;re referring to projects like Darwin (released in 2000) and Webkit (open-sourced in 2005). They also invested heavily in LLVM starting in 2005.<p>Those are all major strategic investments into open-source, at a time where companies like Microsoft, Google and Amazon were not making any comparable investments that I can think of. For example, in 2005 Android was freshly acquired by Google, Chrome was still 3 years away. Go was introduced in 2009.<p>One exception I can think of is IBM which invested heavily in Linux around the same time Apple was open-sourcing Darwin.<p>Overall, their claim is arguable but certainly not without merit.<p>EDIT: remember when IBM covered the streets of San Francisco in Linux graffiti, and were threatened with a huge fine when the paint didn&#x27;t wash off as planned? <a href="http:&#x2F;&#x2F;usatoday30.usatoday.com&#x2F;tech&#x2F;news&#x2F;2001-04-25-ibm-linux-graffiti.htm" rel="nofollow">http:&#x2F;&#x2F;usatoday30.usatoday.com&#x2F;tech&#x2F;news&#x2F;2001-04-25-ibm-linu...</a>