RFID technology has generated much hype. The major driver for its development has been the tagging of physical objects - people, places, and things - with single chip radios so they can interface with computers. This paper examines several key trends in the latest phase in RFIDs history. First is the evolution of standards for the various components of an RFID system including the transmission technology (the ""RF"" part) and unique identifiers (the ""ID"" part). Efforts to standardize the various components of an RFID system are leading towards interoperable RFID technology and applications.