A world in which your chocolate cake communicates with your iPhone? It may not be far off.
A student at the Royal College of Art in London has come up with a tiny, edible radio frequency identification (RFID) chip that could be implanted in foods. The chip could theoretically send nutritional data — calorie counts, ingredient lists — to those on diets or people with food allergies, says this article in The New Scientist. It could hold data about where a product was grown or produced, or any number of things. More