The missing switch: High-performance monolithic graphene transistors created

One of the reasons companies work so hard to make small scale features is that smaller scale means smaller die, smaller die means more devices per wafer, cost per wafer is fixed, more devices at a fixed defect rate means more yield (good devices), more yield means more 'value' per wafer.

Got that? The chain of events is predicated on the high cost of creating a semiconductor wafer.

Now if instead you can 'print' the circuitry, and you do mixed signal stuff. Then you can make your entire system as one board sized integrated circuit. Think an LCD television (transistors on glass) where instead of each transistor being the same you put a CPU and various other peripherals there. Size is not as important but yield still is.

So for things like phones/tablets, if you can do LED pixels (vs LCD) then you don't need the glass to be transparent (backlit) so you put down a layer of display, then a layer of compute, then a layer of memory, and finally a layer of radio. And voila, a device which looks like a piece of glass with black scum on the back that lights up and makes phone calls if you put power to the ends :-).