At the Imagina 2005 conference there were two interesting lectures on NFC (by Philips) and RFID (by ASK). It made me wonder why we have so many different wireless standards that are, at least partly, overlapping in terms of applications. Besides these two, think about Bluetooth, Zigbee, IrDA and Felicia. Here's an article that focuses on the same question, and they conclude that consolidation is inevitable.
"Security is the big issue for wireless payments, and here infrared, which requires line-of-sight connections, has a natural edge over broadcast-radio schemes like Bluetooth. "Banks like infrared because it is short-range and point-to-point. You are not transmitting sensitive financial data to the person behind you," Brown said."
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