iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
CES 2012: Gorilla Glass 2 to Allow for Thinner Stronger Phones
Apple has previously used the strengthened glass in their iOS devices. In 2010, David Pogue relayed a claim from a scientist that Apple was the #1 customer for Gorilla Glass and buys "practically all the Gorilla Glass that Corning can make." At least parts of the story were confirmed in Steve Jobs' biography. Corning reportedly shelved the idea for Gorilla Glass back in the 1960s but revived the project at the request of Steve Jobs in 2007. The original iPhone launched with the damage-resistant glass, though there has been some debate about whether it still is being used in their most recent models. Corning, of course, has never acknowledged Apple's usage but says that due to "customer agreements", they can't identify all devices that use their Gorilla Glass.
The new version of Gorilla Glass can be up to 20% thinner than the original and still retain the same strength. Alternatively, manufacturers could continue to use the same thickness, and benefit from greater strength. Manufacturers have already received samples of the new Gorilla Glass so it should start appearing in consumer products in 2012.
Here's a hands on demo at CES of the strength of the new Gorilla Glass:
The additional thinness offered by Gorilla Glass 2 is also said to result in brighter images and better touch responsiveness.