RF TO NFC

http://ercim-news.ercim.org/content/view/492/705/

http://code.google.com/p/nfcip-java/

http://www.primianotucci.com/default.php?view=112

http://www.diganttechnologies.com/nfc_1.pdf

http://www.diganttechnologies.com/

http://www.libnfc.org/hardware/pn53x-chip