We're talking two different things here. Yes, ideas get built upon all the time, you should just develop a better kickstart and leave Amiga Inc's alone, that's exactly what happens all the time. The have complete control of their software, but it doesn't mean you can't build your own and build it better. Why do you think AROS was started? It's Amiga like code that doesn't belong to Amiga Inc, nobody is controlling AROS.