Submission + - Powdered sized RFIDs
WeAreTrackingYou writes: "According to this AP Story scientist at Hitachi have built RFID tags that are the size of powder crystal i.e. 0.002 inches by 0.002. However the only problem is that these RFID tags need a external antenna. Next time you go to Mega Lo Mart you might get sprinkled with this pixie dust er powder-sized RFID tags so that they can serve (track) you better."