A radio you can swallow.

This is straight from their website:

The SmartPill pH.p Capsule is a miniaturized disposable telemetry device. Its dimensions are 26 mm x 13 mm and weighing little more than 3 grams. It is encased in inert, bio-compatible, medical-grade polycarbonate that makes it safe for human ingestion. Internal to the device are the data transmitter, three sensing elements and a battery chamber housing the power source. On it's brave sojurn through your colon, it measures Ph, pressure and temperature.

The SmartPill pH.p Capsule moves through your intestines by peristalsis or the normal rhythmic contraction of the intestinal muscles and is capable of transmitting data continuously for greater than 72 hours. The single-use capsule is excreted naturally from the body, usually within a day or two, without pain or discomfort. [suuure...]

Trials completed in June of 2004, and in 2005 began the submission process with the FDA. What about the submission process with the FCC?

Credit to "The Future of Radio Blog" where I first read about this.
http://futureofradio.typepad.com/the_future_of_radio/