Since we can no longer use UDID and I'm needing to have a unique device identifier. I'm planning to generate one (via IdentifierForVendor or just calc'd via NSUUID) but I need to save it somewhere on the device that won't get destroyed if the app is re-installed. I believe the keychain will work (?) unless the device gets cleared or the keychain gets cleared.
Thanks, Erel. I'll likely use that one. However, just as was mentioned in that thread you posted the link for, unless there's a (relatively) safe place to store and reference that unique identifier ... the Keychain for example (?) ... it doesn't do much good for licensing purposes.