Dev what is point in making assumptions, its guess work. Just try and concentrate on the tangible. You dont know the level of royalty on any product, its suffice to say that there are increasingly greater numbers of deals out there. The success of idvd's, even at this early stage of retail acceptance is colossal and the future impact will reflect greatly in the zoo coffers. Just keep reminding yourself that if other developers out there expand production in a similar way to Circle, then royalties will increase 5 fold (very conservative). It is more likey on idvd alone that there will be a snowball effect and other developers will see the need, and the economic reality, to bring their partly "interactive" products into line with those that have used des and created the interactive standard.
Rubbish it all you like it wont stop it succeeding