The last day of Nokia World, I interviewed Jeremy Belostock, the Head of NFC for Nokia's Device Experiences group.

NFC -- for those of you non-gadget types, like myself -- stands for "near field communication."  And it is basically a functionality which allows mobile handsets to have "contactless" communication with other handsets, ear pieces, keyboards, other devices, even with out of home media, product packaging, kiosks, turnstiles, or anything where you can enbed an NFC-smartcard.  Think of NFC as a tooll which allows you to use your mobile phone as your subway pass, your credit card, your change at a vending machine, or as a way to interact with media for additional information or promotions. 

There are a few hurdles keeping NFC from becoming a mainstream application: