I think a front facing camera was probably just too awkward to use. If you're sitting with your legs crossed resting the tablet on your knee a front facing camera isn't going to be showing your face. People will get a good look at your shirt though. If you have it laying down at a usable angle on a desk (say 30 degrees inclined) you're going to get a shot of the celling. I imagine this is something you'd see in the form of a third party accessory with a movable camera.
