Isn't there a new law passed in the USA that allow authorities to shut down any website guilty of hosting unauthorized copyrighted content? Don't you think anyone with legitimate claims to IP would use such a law?
I believe Gary Peake was very pro active when it came to issuing cease and desist notices.
In answer to Iggy's question, I would say that Amiga Inc's claim to Amiga OS is valid until proven otherwise. To be honest I don't expect anyone to come forward and claim it is theirs, although this is Amiga so anything is possible.