As RFID tag prices drop more applications utilizing RFID become feasibly and cost effective.  Specifically, item level applications such as using RFID to track hospital supplies or pharmaceuticals.  It was not conceivable that when the cost of a UHF RFID tag was $.70 ea that using RFID to track millions or billions of individual items would make financial sense.  The dramatic price drop of RFID tags over last several years will remove one of the main obstacles for using RFID to track inventory & pharmaceuticals at the item level. 

UHF Gen2 compliant RFID tags - the great debate out in the RFID industry is if HF or UHF will win and become the default standard for RFID tags at the item level.  As in any other industry the "low cost producer" usually wins.  In this case that would seem to be UHF RFID tags.  The cost of making the UHF RFID tag is lower then that of HF RFID tags and with Wal Mart, Department of Defense and other retailers standardizing on EPCglobal's Gen2 standard the economies of scale is in favor of UHF RFID tags.