I've heard a few people have found it not as durable as 3G S or 3G. Someone at the store near me got their brand new one, walked one step out, dropped it and it shattered. 3 foot drop shouldn't make that happen...
Wow, if this was on FML, I would click "You totally deserved it". I'm kinda amazed that someone could be so careless that they dropped a brand new, very expensive, device while walking out of the store after buying it.