When do we think the Sapphire glass used on the camera lens will be affordable enough to be used on the screen? Or if it ever will be? (Surely it will?) We've had it used on mobile phone camera lenses for a number of years (since the original iPhone?), so you'd think prices would've dropped since then. Surprised there hasn't been word on it being considered for use on the screen of a phone (Apple, Samsung etc.) any time soon.