This concept PC takes the idea of scribbling an idea on a napkin a step farther by making the "napkin" a touch-sensitive e-paper sheet RF-linked to a nearby receiver as shown in this image. The base station can then be linked to a regular computer so that multiple base stations can be linked. Multiple napkins can be linked to make a larger writing surface. The RF link is inductive so the napkin doesn't need a transmitter, and using e-paper means the display is passive, not active so requires minimal power.