It looks as though your screen is peeling away from the layer underneath, very odd.. I would definitely see about getting a warranty replacement if possible!
Would I talk to my service provider or Samsung about that? I got the phone a month or so after release, so I'm not sure if it would still be covered under warranty or not.
If this is damage due to manufactures' defect, I'd talk to your carrier first, they should give you a replacement.. If they won't Samsung would be your next step. I suggest be assertive with your carrier though, because if you do have to go the Samsung route, you'll be without a phone for a few days.. Please remember, being assertive doesn't necessarily mean be an @$$hole, and you catch more flies with honey than you would with vinegar!
Good advice. Would my best route be going into the store, calling, live chatting, or emailing (with photos)?