RFID reading system comprising an ultra high frequency (UHF) RFID reader and software for reading RFID signals; RFID readers; RFID tags; Software for reading RFID signals; Handheld mobile digital electronic devices for sending, receiving, and storing digital data, and capturing digital images; Handheld personal computers and personal digital assistants (PDAs) featuring GPS support, wireless local area network connectivity, wireless radio communication connectivity and digital camera functiona...