Scrolls scrolls

Have been banging my head against the keyboard, trying to come up with a new control for scrolling that utilizes the least amount of real estate on screen. I found this while updating my iPod one day. It's an interesting approach using filled/unfilled dots to indicate the current position while the left and right buttons scroll a "page" rather than an item at a time. However it still doesn't address the issue when your items have two or more dimensions.