What's the point of investing $100 million in a mobile payment system if you don't have the goods to back it up? AT&T may be adopting this philosophy, beginning with the Galaxy S II. With the aid of eagle-eyed Android dev Francois Simond, we conducted an extended analysis of Ma Bell's latest gem and discovered it's rife with NFC. In addition to containing kernel drivers and a pre-installed APK, the system files also indicate the device is running in a mode named NDEF -- short for