Second camera in the Diamond

[Mr. X]

here is the pic. the thing in question is in the left side of the ear peice. you cant really see the polarization because of the camera

http://tinypic.com/view.php?pic=o9l40o&s=4

rectangle piece of clear/polarized plastic does not look like any light sensor i have seen on any of my other devices or laptops. looks like a lenses. its polarized.