sooo.......i was running and jumped and it flew out of my pocket and i watched it fall and hit the ground in slow motion...so im putting my arguing skills to the test tmr and argue at the apple store trying to get a new one for free or a discount because of the "unbreakable" glass...wish me luck...
After seeing horror stories like this, I just ponied up the dough and bought coverage through Squaretrade. It was only $99, which isn't bad. For those who preordered, you only have a couple of days of eligibility because you can only get it within 30 days of your purchase.
The glass is much HARDER than the previous version. The harder something is the more brittle it tends to be. What this means is that this glass (similar to synthetic sapphire) won't scratch nearly as easily, but will break more easily. That is how glass works. High-end watches use sapphire crystals and go decades without a scratch, but drop them off a table and there is a good chance they might shatter.
Not sure if this was mentioned before, but I was just talking to a VZW rep and she mentioned you can take a device with a cracked glass to a local Apple store and they will replace it for about $100 or so.