Who would have thought that glass would become so important to smartphone manufacturing that device makers would start putting it on both the front and the back of $700 devices? And the company that's making out like a bandit is Corning, the maker of the super-scratch-resistant "Gorilla" tempered glass that's now in a majority of premium phones. While Corning could probably rest on its laurels for a decade or two (at least until synthetic sapphire becomes a lot cheaper), its engineers are cranking out some new novelties for manufacturers to try.

Read More