Split Views on iPad
When the iPad was first introduced, Apple changed the name of the operating system from iPhone OS to iOS, and added some iPad-specific features to the SDK. The most distinctive is probably the split view. This is a UI metaphor that combines a narrow view on the left side of the screen with a wide view on the right. In portrait orientation, the left view usually can be shown or hidden, whereas in landscape view the left view is always present.
Several built-in apps on iOS use the split view. Mail shows message senders and subjects in the left view and the message content on the right. Settings has the master list of settings categories on the left and the UI for the selected topic on the right. The split view lends itself ...
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