They look like normal pills, oblong and a little smaller than a daily vitamin. But if your doctor writes a prescription for these pills in the not-too-distant future, you might hear a new twist on an old cliché: “Take two of these ingestible computers, and they will e-mail me in the morning.”As society struggles with the privacy implications of wearable computers like Google Glass, scientists, researchers and some start-ups are already preparing the next, even more intrusive wave of computing: ingestible computers and minuscule sensors stuffed inside pills.
http://bits.blogs.nytimes.com/2013/06/23/disruptions-medicine-that-monitors-you/