I don't believe so. In fact the only information that it provides about the customer is their country of origin.
Just to validate the above (since they seemed unsure), iTunes Connect does not give you the UUIDs of your customers.
It is possible for an App to get the UDID from the device it's running on. So if the developer wanted it to, you could set it up so it send this back to a server. Code: [UIDevice currentDevice].uniqueIdentifier