&gt; What are the implications for my free, open source software? And my closed source commercial software?<p>Software that implements other party&#x27;s APIs might be obligated to agree to a licensing agreement - projects like Wine, Samba and various 3rd-party emulators. Ironically, Microsoft&#x27;s discontinued, Android-compatible project Astoria would be exposed (to both Google <i>and</i> Oracle) - Microsoft submitted an amicus in the first Oracle v Google case supporting Oracle&#x27;s cause. I am not sure if Xamarin- and Cordova-&#x2F;Phonegap-type projects would be subject to Apple&#x27;s lawsuits.<p>I also suspect web-APIs might also become risky, making it possibly for Amazon to sue you for providing AWS-compatible APIs[1] for example<p>Disclamer: I am not a lawyer, this is just my layman&#x27;s perspective.<p>1. <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Eucalyptus_(software)" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Eucalyptus_(software)</a>