My wife noticed this on the back because I was too busy looking at the screen all day! Picked it up on Friday and handled it like a raw egg since then and it wasn't dropped or anything. The scratch is next to the headphone jack and super clean. No other scratches around it, no dents. Its also very deep, maybe about 1mm into the metal. Looking at the type it looks like a factory issue as its a very clean scuff with no rough edges, no metal shavings etc. It almost looks like cut in with a knife or tool. Too bad that I now have to go back to the store and exchange it. I am hopeful nobody there will imply that I damaged it. Now I wish I had them unpack it at the store and set it up for me, could have saved me a lot of hassle. Anybody ever seen this on an ipad or other unibody product?