7.0 (May 2015) included the ability to auto-tag images using Reverse Geocoding.

Another app, PhotoTagger, works with Facebook to "auto-tag" faces in photo albums.

Realising this, a German company has just released software called "doo" that can be used online or off to collect, sort and auto-tag every document on your computer.

Rather creepily, the app will garner age and gender data via cameras in a selection of registered bars, but, hey, Facebook is already using facial recognition to auto-tag snaps, so you might as well just submit to your voyeuristic, digital overlords already.