For example writing a plugin that helps getting it, as far as i saw its not possible going the device.uuid way from phonegap (i am using version 3) anymore.
I don't want to use the app on the appstore, no privacy concerns, it's an inhouse-app. I just need a unique identifier for ios 6 / ios7, so that i can define who is using the app and who isn't allowed and the udid seems to fit this definition.
You can still use the device.uuid, but it isn't a real UUID
from phonegap doc
I've created a plugin to get the identifier for vendor
https://github.com/jcesarmobile/IDFVPlugin