You could spin this further. Me thinks SJ might have been wrong with his analogy of "trucks" and PCs. Perhaps instead, TVs will become the center of processing power and memory/state in the home, with tablets/phones, in combination with an external keyboard, accessing the power like terminals used to in the 70s, except the mainframe is now in your living room instead of n km away. That would also require a unified OS so it's not one or two generations away. Still, this could be something to think about...