6. BluRay is not a Sony format.
The current BluRay spec has been developed in conjunction with just about every other major consumer electronics manufacturer in the world. The initial technology was Sony's, yes, but the BluRay association as a whole has jointly developed the current spec and will share in its manufacture and distribution. There will be no "licensing" of the technology to other manufacturers. Sony learned their lesson with Betamax.
BluRay is an intelligently conceived technology that has the support of the biggest names out there. It is not a "Sony technology".