iPhone 5's 'One More Thing': NFC?

The most recent photo of purported iPhone 5 components includes an unknown chip that some believe to support near-field communications. The photo shows an assembly of parts, but with an addition not seen in previous photos of the same assembly. AppleInsider reported, "The square component covered by EMI shielding is in line with the dimensions of currently available NFC packages like NXP's 5 millimeter-by-5 millimeter solution."