I can't imagine that the black ones don't have cracks. They just might be that hard to see. I'm trying to find one on mine but can't.
It's very possible for this to only effect white models. We don't know production methods, materials used etc. Maybe it has something to do with the paint, or something they do before they paint it. Who knows..
I just examined my 16GB black with great detail and there are no cracks. Until I see a black one with cracks I think it's safe to say this is an issue with the white model.
I check my black 16GB every day, very carefully for cracks, and have yet to find any.
It's very possible for this to only effect white models. We don't know production methods, materials used etc. Maybe it has something to do with the paint, or something they do before they paint it. Who knows..
misuse, like carrying in a pocket naked.
My white iPhone has cracks too - never dropped it, looks a lot like the OP's photos.
I'm pretty sure that's what the phone was designed for, not to be put in an ugly case. If it was designed to be put in a case, Apple would have provided one with it.
rich and doesn't care. he is the just like bill gates with windows releases now.
steve jobs just needs to come out and say, "yeah, there is a problem" but nope, he doesn't.
hate me, i don't care. he doesn't
I'm gonna have to say this is a bad batch or misuse, like carrying in a pocket naked. It's a plastic phone. 1st gen spoiled you. Take it easy.
The plastic molds are simply dyed white or black. I can't imagine that they are any different other than color.
The plastic is not dyed. These are injection molded parts, the color is in the actual plastic pellets that are used. These crack could effect only one color they may only effect a certain batch of a color it will take time for Apple to figure this out. These could be caused by mold temp, pressure differences, raw material composition, cooling time and temps. It also could be an assembly issue, or a design issue, or even a dimensional issue. Apple is doing the right thing they are replacing them, this way they can determine what the problem is. I've worked in automotive assembly for years as a quality/reliability engineer and this real isn't an uncommon defect in new plastic parts.
As far as raw material the black and white raw material can come from completely different suppliers.