arenaman: When it comes to ownership in complicated legal contructions you do need a lawyer. You cannot compare this with eg owning a car. Clear is that it is unclear which part of the Ip belongs to ROL and which part belongs to Castle . The same goes for the code.
So it has nothing to do with 'childish' but different intrepretations of a contract.
Futhermore the fact that you own something at this moment doenst take away the fact that legally you can breach a contract.
When this will come to court a judge will allways look at the situation *as it was* at the time of the breach.
At that time Castle didnt own Risc os ( code or ip) ROL has an exclusive licence for the desktop market. So Castle violated that.