[frankus]

Not that it hasn't been possible strictly due to lack of a suitable interconnect technology, but I wonder if this could facilitate using your mobile device as a sort of "personality module" that could plug into a monitor with a built-in graphics chip and maybe some additional processing power (accessed via OpenCL).

Obviously the OS would have a long way to go to support that kind of thing, but I would be surprised if in five years your typical "home directory" isn't either entirely cloud-based or uses a scheme like this.