23% of Apple iPhone screens are cracked, according to a survey86
According to the story, Steve Jobs wanted to use glass on the Apple iPhone instead of plastic, but was concerned about breakage. When someone suggested he should see Corning, he flew out to see Corning CEO Wendell Weeks, and was impressed enough with Gorilla Glass. But Weeks told Jobs that it could not mass produce the glass. Jobs placed the order anyway, telling his fellow executive, "Don’t be afraid. You can do this." Corning's official version is a little different. The company says that it "began developing a tough new cover glass for electronic devices in 2006."
You might wonder how 23% of Apple iPhone screens could break if Gorilla Glass was used. Corning says that if a screen is subjected to enough abuse, it will crack even with Gorilla Glass. Corning's product is designed to "better able to survive the real-world events that most commonly cause glass to scratch, chip, or break."
source: MobileInsurance.co.uk, Time, PhonesLimited via WMPoweruser