'The Wireless Body'
PositiveID's Wireless Body, a new healthcare-management system for diabetes patients, uses an RFID microchip that's slightly larger than a long grain of rice. The chip is usually embedded in the patient's arm. Rather than enduring daily finger pricks, diabetics use a wireless scanner to get readings from the implant--an easier way to monitor and record their blood-sugar levels. Love it or hate it, RFID technology will soon play a major role in our daily lives.