What is the point of the symlink to com.apple.PeoplePicker.plist?

Any Xcode project I create from scratch always contain either a sym link to the com.apple.AddressBook.plist file or to com.apple.PeoplePicker.plist in the folder:

Application Support/iPhone Simulator/(SDK Version)/Applications/(GUID)/Library/Preferences

Anyone know why this is and how do I go about the ap开发者_如何学编程p never creating this?

It seems to get created after I run the app in the simulator and always comes back no matter what I do.

What purpose does this link serve?

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The point of the symlink to com.apple.PeoplePicker.plist is to provide default sorting behavior for the PeoplePicker; when picking recipients for email message.

Reference: http://developer.apple.com/library/ios/#documentation/ContactData/Conceptual/AddressBookProgrammingGuideforiPhone/Chapters/QuickStart.html