iOS 5 Features: Unsecured call warning

Not that many of us are Bond, Borne, or Sarah Walker types, but just in case you might be a target for cellular call eavesdropping, [iOS 5](] will now warn you when you're talking over an unsecured network. If you're a high value target, you're probably avoiding even the secure ones, but if you're simply living next to a nosy neighbor with too much time and Radio Shack kit on his or her hands, it could be handy to know when you're vulnerable.

Anyone glad for this warning?