The first thing I think of as a burn-in risk is the ever-present bottom touch indicator. It is a black strip that sort of resembles a mic or speaker grill at the bottom of the screen and it is always drawn. Does anyone know if that will burn in, or is Apple doing something different with it in software or hardware?

The status bar elements also seem like a large risk, as some pixels tend to not change.

I also can definitely notice a ghosting effect while reading and scrolling text at the same time.