Nice primer on NFC. Essentially it's improved RFID. Ben.
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Feature: Near Field Communications: a technology primer
Near field communication (NFC) has recently popped up in the news. The technology is most closely associated with mobiles phones—Google has added support for NFC in Android, and Samsung has NFC hardware in its Nexus S handset, while Apple is rumored to be adding NFC support to future iPhones. NFC is an evolution of the simple RFID technology employed in "contactless" payment systems such as MasterCard PayPass and Visa payWave. It's also similar to (and compatible with) the FeliCa system used widely in Asia for mobile payments and ticketing systems.
In this article, we'll tell you what NFC is, how it works, and how it can be used.
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