With this NFC technology, the future users can use their phones as a 'digital wallet'. How users can simply hold the phone to a sensor (like the RFID card in the machine absent). Approximately Flazz card's functions such as the BCA as a means of payment.
Quoted from the know your mobile, on Tuesday (04/19/2011), according to Ming-Chi Kuo a security analyst from Concord, iPhone fifth possibility has not been using NFC. Because several designs and innards new iPhone is still the same with the iPhone 4, except to the problem processors and camera sensors.
Currently, several mobile phones that support NFC technology are: Google Nexus S, Samsung Galaxy S II, 578 Wave Samsung, and Nokia C7-00.
If so, then the iPhone 5 still losing from Nokia that was clearly going to use NFC in Windows 7 Phone phone line later. Until Apple gives official information, this is still a rumor.