[bri3d]

This version is substantially better than mine - in addition to the correct hook mentioned in the parent comment, ryanpetrich's code uses a private CoreFoundation API rather than UIAlert which is both safe to access from non-main threads and blocking, making the tweak both simpler (no dispatch or blocks) and allowing it to pop up a "yes/no" dialog.

I've updated the README in my GitHub repo to point here and I'm considering ContactPrivacy a better replacement for AddressBookPrivacy at this time.

Here's to hoping Apple does something like this in a future release of iOS.