Originally Posted by Olaf Barthel
Depends; when IBM designed the PC and its BIOS, the first company which created a 3rd party BIOS (which allowed non-IBM hardware to be used with it) did so by using clean-room reverse-engineering techniques. Without proof of that approach, IBM would have found it much easier to sue them and prevail in court.
Yes but as someone already stated, there is no money in suing hobbyists not that it would even get past a cease and desist order. Besides that with the complex state of who holds what copyrights, you could probably just claim whoever was taking action against you didn't have the right to, it would most likely take them years and more money than they had trying to prove they owned the copyright