Aaron is absolutely full of it. With Castle ceasing to make hardware he sees them not being in a position to defend their head licence, and is cynically making outlandish and unsubstantiated claims, then hiding behind the pathetic JC defence of "I know something you don't, but I can't tell you".
Everyone who still gives a flying frig formerly from Acorn, E14, Pace, Tematic or currently at Castle or ROOL rejects these claims as complete fabrication. Telling neither Paul Middleton, former directors of ROL, or shareholders of ROL ever made previously made such claims before Aaron became involved. Indeed the party line prior to this was that emulators were illegal under their licence.
It is very easy to settle this dispute, either make the licence public or take any parties they claim are violating it to court. But of course this wont happen, with the OS being given away for £5 and £20 there is no money for legal action, and the only use of the licence is to allow inadequate individuals to snipe at the open source efforts from the sidelines.
All this achieves is tainting the whole platform with the same stench as the failed blackmail attempts of SCO.