I noticed a minor blemish on the iPhone 5 I received by preorder last Friday. I've been staring at it all weekend and even went to the Apple Store to check out the other phones. I noticed a similar blemish (same location on phone) on three of the seven display models I examined. . Should I request a replacement? I've never returned an Apple product before. How much hassle does the process entail? My concern is that they will replace it with a refurbished model or make me wait a week or however long it takes to get a replacement.