Apple could set itself apart from Google Maps and others by utilizing 3D Touch which others don’t have. Could leverage it to zoom in on something. Wouldn’t actually have to be limited to Maps. It could work for Camera or even websites. It could zoom in the amount to press down. So, the longer you hold it the more it will zoom in. To zoom out, can do a double-tap and hold down on the second press – and like before, the longer you press down the further it zooms out.