NFC (Near Field Communication)

is a short-range high frequency wireless communication technology which enables the exchange of data between devices over about a 10 centimetre (around 4 inches) distance

Usage:

Mobile ticketing in public transport — an extension of the existing contactless infrastructure.
Mobile payment — the device acts as a debit/ credit payment card.
Smart poster — the mobile phone is used to read RFID tags on outdoor billboards in order to get info on the move.
Bluetooth pairing — in the future pairing of Bluetooth 2.1 devices with NFC support will be as easy as bringing them close together and accepting the pairing. The process of activating Bluetooth on both sides, searching, waiting, pairing and authorization will be replaced by a simple "touch" of the mobile phones.
Other applications in the future could include:
ELectronic ticketing — airline tickets, concert/event tickets, and others
Electronic money
TRavel card
Identity Documents
Mobile commerce
Electronic key — car keys, house/office keys, hotel room keys, etc.

this technology is available now in omnia I910