Fans of Deus Ex have been pretty vocal about "highlighting" in the upcoming Deus Ex: Human Revolution, and Eidos Montreal has responded. If you want to, you'll be able to turn object highlights and objective locators off in the options menu.
Furthermore, the difficulty settings include a "Give me Deus Ex" hard mode which turns the object highlights and objective locators off by default. But if you want to turn them on or off in any difficulty you have chosen, you can still do that as well.
So, people asked and the developers listened. Which means fans will now find something else to complain about!