Mine hit the concrete pavement outside my house.....Ya that freaked me out. I was carelessly holding my iphone 4 and swung a door closed and it fell 3 feet to tile. I heard a distinct couple thuds from the cheap tpu case I have on. Thank god I did. No damage woohoo
I've seen its equivalent, the Ballistic, thrown against a wall and dropped from five feet. Neither side had major cracks. It's likely the cases absorb the shock. Also, they both have screen protectors, which will protect against some of the major scratch issues.
Same thing happened to me when I was getting out of my car! I heard this noise and my wife yelled "You dropped your iPhone!"Mee too but i was sleeping a little bit on my car then i wake up i opened the door and i forgot i had my iphone on my leg!!! I was running to get a case