With the ipad 1, I think they had screws to hold the screen down, but they did away with the screws and used glue instead for the ipad 2. Think there are a few other cases whereby the glass is coming away around the home button edge. Mine seems to have a bit of that too, like the glass can be squished down. But mine is on a black ipad so I don't see a black "hole", but i know its there.