I would like a touch screen computer like this:

   a) i touch my finger to the screen.
   b) you touch you finger to the screen.
   c) what I'm thinking/feeling is transferred from the electrons
   in my brain through my finger, the screen, the Internet, to your
   finger, up your arm, and into your brain.
   d) then we'd instantly understand each other.

   No words required.

   We're not there yet technologically, but I don't see why it
   wouldn't be possible.