See my latest article — an introduction to the NFC API for Java…
Near-field Communication (NFC) is characterized as a very short-range radio communication technology with a lot of potential, especially when applied to mobile handsets. Imagine yourself using your cellphone to interact with posters, magazines, and even with products while at the store, and with such interaction initiating a request or search for related information in real-time. Other usages of NFC include the electronic wallet to make payments using your handset, the same way you do with your credit card. With NFC all this is possible. But NFC is still a young technology. That said, NFC-enabled handsets are being introduced into the market, and deployments and pilots around the world are occurring. This article explores NFC and how you can leverage it in your Java application by using the Contactless Communications API.
See An Introduction to Near-Field Communication and the Contactless Communication API (Sun Mobility Website).