How do I get my iPhone / iPod's UDID (unique device identifier)?

Here's how you get your UDID:

Note: UDID stands for Unique Device Identifier

1. Connect your iPhone to iTunes and click on your iPhone under devices

2. In the device information screen you can see the following: Name, Capacity, Software Version, Serial Number, Phone Number.

Click on Serial Number, and Identifier will show up.

Try clicking on on other parameter names for things like: IMEI, Build Version, ICCID.

3. OK, you are ready to copy your Identifier (UDID).