dropped mine yesterday and smashed the screen..... 4 large cracks across it now but still works thankfully 
Oh sh!t, after watching the Gorilla glass demo film on their website last night this surprises me tbh.
They over hype it, but it's a million times better than plastic or weaker glass! At the end of the day it's still glass and can break.
If I keep the S3 I'll get the Shatter Proof screen protector from Amzer, it's £20 but they've told me even if the phones lands on the corner or face down the glass won't shatter - though you'll have a dent / scuff / crack in the bezel, but the screen would survive.