Both those devices are far more complex than any single sensor devices, and thus capable of far more actions.
Fouch really has no idea how many of their units they will sell. First, they will have to develop some interest, and a fully functional website and forum where users can interact with each other and the company, for brainstorming and new ideas.
I like this post because you are willing to use conservative numbers to show the possibility, not overinflated wishful thinking. You show that even by meeting reasonable expectations this thing could explode!