This is a great idea, but it's much much much too expensive.<p>I want the sensors to be under $10, and maybe a $50 - $100 hub to work with them.<p>Edit: And there's a service fee???? (Waived for the first customers.) No way!! am I relying on something that needs to 3rd party to work. (Never even mind the fact that you have to pay them - just the fact that they need to exist makes this a non-starter for me.)