Retrieving the serial number from the device

How do we get the serial number of the device through开发者_高级运维 objective C? I want to retrieve the iPod/iPhone/iPad serial number from within my application.

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If you are creating an application that will not be submitted to the App Store you can check out Erica Sadun's UIDevice Extensions which uses IOKit.framework.

[[UIDevice currentDevice] serialnumber]