Xbox One will sit in your living room and burn through not the paltry 1.2 teraflops of computing power as was rumoured, but almost five teraflops - as much as the flagship £800 NVIDIA Titan graphics card. And then it will get faster and faster over time. At least, that's if the latest Microsoft PR campaign is to be believed. But how realistic is it to move game processing to "the cloud" and keep adding to the resources developers have available? Do Microsoft's claims have any basis in reality? Is this a tactical play to compete against the tangibly superior fixed-spec of the PlayStation 4 or is this really just wishful thinking?