Skin

This definitely isn't going to do anything to mitigate all the Borg jokes, but Microsoft has patented a method for turning human skin into a network that can transmit both power and data in a (very) personal area network. Which means of course that when you make out or hold hands with somebody you now have to worry about getting computer viruses in addition to the real ones.

PS - We should note NTT DoCoMo developed something similar a while back.

[Thanks, Mike]

What Ring Tone format do you use?