Originally Posted by ApK
Perhaps seen I've seen so many cracked, I assumed the surface was was glass.
I have not seen any cracked surfaces at all, as far as I can recall. The broken screens I have seen pictured actually have perfectly fine surfaces, but the fragile glass substrate under the surface had been broken.
This new layer BN is adding to the surface has me a little worried if indeed it is more sensitive than the regular surface (whatever material that is - I have no clue either).