The Store, for instance, lists a series of featured titles above a sideways scroll of browsable categories -- left and right on the analog stick take one through the featured games, while clicking up or down shifts to the next list.

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To make this work with auto layout, the meaning of the top, left, bottom, and right edges within a scroll view now mean the edges of its content view.

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The bottom-left 4 x 4 pads represent drum sounds (touch the slider to scroll up and down through even more sounds), while the bottom-right quarter of the grid serves as a clip-length control (press and hold the first pad, tap the fourth for a four-bar loop, etc.).

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