The rear cover (along with the LCD assembly) finally gives in and jumps ship from the rest of the body.
Well, this is nifty. Notice the red dots drawn on the inside of the rear cover? Each dot seems to correspond to the location of a screw. We assume this is done to keep track of each screw during the manufacturing process.
Every button on the rear cover is tied to a single ribbon cable. This makes repair a bit more costly if a single switch gets fried.