Could Apple make their iPhone have a durable screen by having a very thin film of sapphire on top?

Like say the glass is 1 mm. They make 0.9mm of the glass made of gorilla glass and cover that gorilla glass with a 0.1 mm coat of sapphire to get the sapphire effect.

Thats literally what they're doing with the iPhone 6. They signed a contract with a company in Arizona that was able to produce a synthetic sapphire enchanted glass. They did this contract about a year and a half ago, maybe a little longer I'm not sure. But the contract basically states that Apple will give them money to research and produce this enhanced glass and then sell it to Apple. I do not believe this has been conformed to be on the iPhone 6 quite yet, but it sounds incredibly like they would do that, they also used the glass for the thumb print scanners in the iPhone 5S so that was probably some sort of test to see if it would really hold up. Gorilla glass with sapphire onto would not make it much less brittle. Gorilla glass gets its usefulness because it is so strong, but the strength is also what makes it so brittle. You can't take a piece of gorilla glass and flex it. This new sapphire glass is not only hard to the touch, but it is also supposed to be pretty flexible. There are some purported "leaked" images of the glass when someone is flexing the glass to make it at about a 140-160 degree angle, compared to the normal 180 degrees which would be flat. He's doing this by grasping both sides of the glass with his hands so its not like huge strong machines were need for this, which personally makes me a little weary of the idea but at the same time I'm probably going to get a case for it when I get it anyways, so I shouldn't need the added strength that has yet to be conformed by Apple to my knowledge.