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The UITableView component was developed originally for the iPhone and provides the cornerstone of the navigation system for many iPhone applications. The original purpose of the table view was to provide a way to present information in a list format on the smaller iPhone screen whereby selecting an item from a table view causes a second view to appear containing more detailed information corresponding to the selected item. For example, both the iPhone Mail and Settings applications make extensive use of Table Views to present information to users in a list format and to enable users to drill down to more detailed information by selecting a particular list item.