Its small granted, but its definitely there. Originates from the headphone jack and goes about 1cm down and to the right. The case was delivered Friday to my front doorstep, but I didn't open it until I returned back home on Sunday. Used it Sunday afternoon and Monday during the day, then last night when the light hit it just right I noticed the hairline crack. I just sent Incipio an e-mail, I assume it must be a manufacturing defect as I haven't even really used the case at all, let alone do anything to cause the crack. I bought it directly from their website, so i'm assuming they will take care of me just fine, but I'll be annoyed if they make me pay return shipping to get this back to them. Anyone else run into this issue before? EDIT: See update below, Thanks Incipio!