At this point, most of you are likely familiar with NFC, what it does, and all the neat things you can do with it. And when you start writing your own commands to NFC tags, the possibilities are nearly endless. You could, for example, have a tag that silences your phone, disables GPS, and sets the screen brightness to 'auto' at night. Or have one for the car that enables Bluetooth and GPS, disables Wi-Fi, and then launches your favorite media player or navigation.
NFC is one of those odd features that everybody wants in their phone, but few people are sure how they'll use it yet. Payments systems are slow to catch on and Beam functionality requires a friend with an NFC phone and a need to share data that isn't easier to share via the internet. Samsung, who is quick to note it has the largest NFC-enabled userbase, aims to change that with TecTiles: NFC tags that you can program to perform tasks when you place your phone near them.
One thing that was very much anticipated in the Nexus S and Gingerbread in general was NFC (Near Field Communication) support, which is a feature we've never seen before on an Android device. In fact, the vast majority of us took it to mean that it will allow you to use your phone as a credit card, which would indeed be very exciting and insanely cool.