I share Canonical's vision of having one device for everything: imagine sitting at your desk, taking the phone out of your pocket and plugging it to an external display, and start working. Then, when finished, just unplug the display and put the phone back into your pocket.
Because the computational power of phones can only increase, this vision perfectly fits with our times.
> taking the phone out of your pocket and plugging it to an external display, and start working.
Plugging in is kind of obsolete these days. Many phones and TVs support wireless display, and it's not a gimmick, it takes a whole lot of friction out of using big screens. Ideally, I'd want an amply sized wireless charging pad, a Bluetooth keyboard/touchpad combo and WiDi. And no cables in sight.
Unfortunately the implementation leaves something to be desired. My WiDi box is one of the better ones, a Netgear PVR3000 and it's still a laggy, low quality RTSP over Wifi trick (that seems to be all WiDi is).
Because the computational power of phones can only increase, this vision perfectly fits with our times.