Surprisingly the 1st gen iPhone. In fact, all of the iPhones use GG and the original was supposed to use a hard plastic until Steve Jobs called the CEO of Corning to reopen their factories to produce the glass.
The iPhone 4 gets a lot of flak for build quality, but it's only shatter prone because it's mostly glass, whereas other smartphones have plastic.
"In 2006, Apple Inc. was developing what was to be the first model of the iPhone. Though initially it was to have a hard plastic screen, Steve Jobs found that when placed in his pocket his keys scratched the prototype's surface. Jobs was outraged and resolved to find a glass that was scratch-resistant enough that iPhone buyers wouldn't have the same problem."
http://en.m.wikipedia.org/w/index.php?title=Gorilla_Glass&mobileaction=view_normal_site
The iPhone 4 gets a lot of flak for build quality, but it's only shatter prone because it's mostly glass, whereas other smartphones have plastic.
"In 2006, Apple Inc. was developing what was to be the first model of the iPhone. Though initially it was to have a hard plastic screen, Steve Jobs found that when placed in his pocket his keys scratched the prototype's surface. Jobs was outraged and resolved to find a glass that was scratch-resistant enough that iPhone buyers wouldn't have the same problem."
http://en.m.wikipedia.org/w/index.php?title=Gorilla_Glass&mobileaction=view_normal_site