I feel bad for your limited thinking. The 3D application can be used for a TON.. native AR support in the camera app? Point and shoot your camera at language you don't understand for real time translation, etc?? There is a ton here you can do.Gimmick plain and simple to disguise the fact that Apple's iPhone innovation has long since peaked. Slightly larger phone to accommodate a larger battery? Nope. Keeping tech that's worked for decades like a 3.5mm headphone jack? Nope.
Useless tech like 3d that nobody really gives two **** cents about? Yes!