In any case, maybe I'm stupid in the way this stuff works but, I think it is logical to think that they have something tangible that can be held, touched, and looked at by the companies that have already signed on board with them. I mean, if I was running a company and some dude came in my office talking about magnetrons and microwaves I would chase him out of the office. UNLESS he had something that he could show me to prove the technology works.
That's all I've got. But, I've found that if it makes sense it probably is true. The above makes sense.