Please back up the guilt trip or at least make some justificaton of your statements, and please also complete your sentences.
Who said "Castle won't licence it". No one. As I said, if there's a good case for it, there is no problem.
I'm not sure what you mean by "its quite suitable to Simtec's [board]". There are many many ARM devices RISC OS could be potentially ported to. It doesn't mean it's a good idea, and in most cases it will be a great deal of work.