I have a little bit another information about RF near field usage. There is special new term NFC (Near Field Communications) in the latest telecommunications engineering. This technology will have deal with short distance low power devices and be used for RFID and many other applications. One of the most promising areas is cell phones. Very soon everybody will have NFC deice inside the phone and use cell phone as ID, as credit card for payments and in many other situations that require identification, payments, access to databases or services and so on. Airline, railroad, theatrical and other tickets will be replaced with NFC devices. Plastic credit cards will be obsolete. There are indefinite number of applications and soon NFC will be very important part of our life.