Directions for locating your device's UDID

A. Using Xcode:

To find out the UDID of your device, simply connect your device to your Mac and open Xcode. In Xcode, navigate to the Window drop down menu and select Organizer. The 40 hex character string in the Identifier field is your UDID for your device. Team Members should send this string to me for input into the Apple Program Portal.

B. Using iTunes:

Here is a short article on how to retrieve your UDID using iTunes:

http://www.tuaw.com/2008/08/08/iphone-101-find-udid-with-a-single-click/