I understood that the lawsuit implies that APIs are not copyrightable.
Hardware CPU ISAs (e.g. x86 and ARM) are an API (?), and could have different implementations.
However, there are precedents where CPU developer companies have sued / "cease and desist"ed re-implementors, e.g. ARM v. Amber: http://www.eetimes.com/author.asp?section_id=36&doc_id=1287452
So would the lawsuit mean that ISAs can also be re-implemented?
Of course, I expect the answer to be no and that it is just my lack of understanding of the case. How is the Java API different from an ISA?
This video claims that companies managed to re-implement the "retractable pen" hardware "API" to avoid patent infringement: https://youtu.be/MhVw-MHGv4s?t=247 , how are ISAs different?
ReactOS is a project that comes to mind back to software land.