Getting to the dock in Lion's full screen mode

Mac OS X 10.7 Lion has streamlined full screen mode for many apps. Full screen mode get you in a distraction-free where the menu bar and the dock are hidden you only see one window covering the whole screen. Getting to the menu bar is easy: move your mouse pointer at the top and it’ll reveal itself. The dock is as easy: move your mouse pointer to the bottom and let it slide back… or is it?

Something funny is going on here. If you move the mouse pointer at the bottom, nothing happens. If after getting at the bottom you stop, then try to get further down, then you’ll see the dock slide into view.

That’s a clever fix for the problem of reaching a UI elements at the bottom of the screen without having the dock slide it to obstruct whatever we wanted to reach. But I can’t stop wondering whether it’s just too clever. How are normal people supposed to discover this trick? Won’t it just look like some odd erratic behaviour? Time will tell…