The Cover Flow appearance on the dock adds perspective to the icons.
If you think that it looks boring to see regular-looking icons on your dock that look exactly the same as everywhere else, then maybe it's time to switch to something more.. different. A new tweak dubbed Overflow
by iOS developer Adam Bell
has been released that allows you to have a Cover Flow appearance in your dock. It makes the icons tilt sideways based on their position on the dock. You can see exactly what