Projected display will make device size irrelevant.

And we know MicroVision with Sony has the ability to do this NOW. (We should be seeing products being released any time now.)

At NetworkWorld

Fredric Paul

I'm a big "phan" of giant phablet devices. That's not because I like to tote around comically large slabs of metal and plastic, but because I find smartphones more useful the more screen real estate they present.

Last week, Chinese tech manufacturer Lenovo showed off its Smart Cast concept phone at its own Tech World conference in Beijing. Like a concept car, it's not clear if the Smart Cast phone will ever make it to production, but the technology has the potential to eventually shatter the connection between device size and screen size. By projecting the device's touch screen on to any convenient surface, smartphones may one day be able to have displays of any size. Critically, the Smart Cast technology lets you interact with the projected screen, so you can use it as a keyboard or other input channel, as well as a monitor.