RFID becoming billion-dollar market – Storage – Breaking Business and Technology News at silicon.com
For more info click on above link

The market for RFID semiconductors is set to be worth $2.3bn by 2010, driven by retail use of the tagging technology and volume applications.

The figure comes from Future Horizons, which puts the use of RFID (radio frequency ID technology) at an already healthy level of $900m last year. RFID tags can be read wirelessly at short distances as a way of communicating small amounts of data.