Not so long ago, the Android 2.3 platform was released, in which several new forms of communication between developers and users were presented. One of them, Near Field Communications (NFC), allows developers to begin creating a new class of proximity-based contactless applications.
NFC is a new technology that provides new ways to use mobile devices, including buying tickets, advertising, ratings, and sharing data with other devices. ( About technology in Wikipedia )
The Android team believes that there is great interest in the appearance of these features in many applications, so an update to Android 2.3 has been released, adding new NFC features to developers. Some features include:
A comprehensive read and write NFC API that allows applications to read and write almost any standard NFC tag;
advanced intent dispatching, giving apps more control over how and when they are launched, when NFC tags are defined;
some limited peer-to-peer (P2P) support with other NFC devices.
Android 2.3.3 is a small release that includes a new API level - 10. It is expected that most devices that come with Android 2.3 will upgrade to Android 2.3.3 (or higher). For an overview of API changes, see the release notes for Android 2.3.3 . The Android SDK 2.3.3 platform is available for development and testing through the Android SDK Manager .