I don't think any of the above posters understand the OP's problem fully, possibly due to the lack of explanation on his side. He isn't saying that the entire camera module has moved, but simply the sensor + lens has shifted slightly within the enclosure. You can see this because in the Hi-res image he uploaded a few posts ago there is clearly a crescent-shaped gap between the side of the cut-out and his lens. The alignment isn't perfect as it is on most phones, probably due to a manufacturing defect or impact.
Hope that clears things up for you guys.
But he's also not shooting the picture from dead center either, so of course its going to look off center if your not taking the pic from exactly straight above it. Its all about perspective.