Changes

The selection of the Navigation-based iOS application template has given us a number of template files that will save us a considerable amount of time in the course of creating our application. The best way to get an overview of this is to select the ''MainWindow.xib'' file in the project navigator panel. Once the file has loaded, expand the panel to the right of the project navigator panel and unfold the entries under the Navigation Controller and Root View Controller objects:

[[Image:ipad_xcode_4_table_view_navigation_controller.jpg|iPad table view hierarchy]]

@end

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Next, modify the viewDidUnload and dealloc methods to ensure that we release the authorList array when the view unloads or the application exits:

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