Looking at a mainstream thing like Sony's EyeToy and the, not yet mainstream, High Joy mentioned below, I can't help but wonder where all this might lead to. May be someday we will all live permanently in something like The Matrix.
"Amir runs High Joy - a start-up that's just completed the iVibe, a sex toy controlled via the Internet. One person plugs in on one side, while the person on the other end controls the vibrations. Vivid Video and Doc Johnson, the biggest sex toy manufacturer in the business, think the iVibe is more than just a remote controlled vibrator. They think it's the Pong of sex machines - a first step in the next generation of interactive adult entertainment."