This was my big question as well. And even if Moore's law does start tapering off, will wireless standards be able to handle the amount of traffic that everybody having one or two always-on devices would generate? I would imagine that the number of collisions would be catastrophic at some point. Could somebody smarter than me explain how there isn't a limitation on wireless communication based upon the limited frequency ranges and minimal signal strength required to prevent interference from causing failure? Wouldn't the same physical constraints that will kill Moore's law impact wireless communication as well?