Gorilla Glass 2 is just as strong, tough and impressive as the original Gorilla Glass. Only difference? Gorilla Glass 2 is waaaaaaaay thinner at only .8mm compared to the original Gorilla Glass at 1mm. And at that size, 20% is a big freaking deal.
Nothing currently has Gorilla Glass 2 but you can be sure even more anorexic thin gadgets are on their way. Thin is in, right?