Image borrowed from

I didn’t think it would be such a big deal, but it is. Two things:

1. The contrast is amazing. Not really noticeable until you try out a 3GS or previous model, but the difference is that the blacks appear to be on the same plane as the black face of the phone itself, which may be a part of the second point:

2. The user experience is improved somehow: the screen seems somehow closer to your finger. Maybe Apple used thinner glass, but whatever it is they did, in a lot of light situations the screen image appears to almost sit on the glass as opposed to under it. Sometimes when I’m using it, I notice this optical illusion and I feel a little bit like I’m in the future, minus the robotic unicorns.