Here is cool trick that you can do with a Nokia N8.

If you plug it in to this appropriately named Plug and Touch device, it can turn any display into a giant touchscreen. All that is required is some HDMI cable, and there is some sort of sensor that tells where you are and what proper icon that you are touching.

All in all, this looks like a terrific device for a full synced society. Reminds me of a Smart Book All-in-One device I saw the other day.