I was playing with the screen angle on my new MBP (seeing how far back it would go) and I saw two things towards the bottom of the screen panel (on the black part around the screen. They look like possibly sensors, and I thought maybe they are the ambient light sensors for the keyboard? What do you guys think? They are about 1 centimeter long and located in line with the bottom of the "MacBook Pro" label. They are also in line with the F2 and F11 keys.