one other note. Microsoft is the chief developer for offline software for the retail component for these RFID pretaggants. Hopefully you are not surprised. The research into mini taggant power source is dramatically in favor of a parasitical nature ie. from your own body. Look next for the introduction of these by pharmaceutical and medical companies touting their great use for watchhing over those loved ones of ours who need to be in contact with a tracing point so we can best "look after them, lest they come to some harm" That quote from a premedia expository to be used as a means to introduce to the public the concept and get buy in.