Researchers at the Korea Advanced Institute of Science and Technology (KAIST) have developed a chip that allows you to listen to an iPod using your forearm as the transmission wire for the audio signals reports CNET

KAIST believes the prototype chip solves some of the problems encountered in setting up personal-area networks that take advantage of the body's ability to conduct electricity. Computer scientists have long envisioned connecting the numerous personal electronic devices the average technology fan carries around each day, but wiring those devices together is impractical, and Bluetooth connections are prone to interference, said Seong-Jun Song, a professor at KAIST.