we had a thread here about tagging with names from the contacts list recently. should be merged maybe.

anyway, tagging with names is only a first step, no matter if done manually or by face recognition someday. it could probably be easily done, but we've found cases when this isn't particularly useful.

a 2nd step should add the ability to add information that's unique to a person to structured data fields in the image header. this way, a readable tag "birgit schmidt" would still be applied, but somewhere hidden in the image is the information that this photo "depicts the person who has the mail address bs@somemail.net and is known as biggsi on facebook". this information can be retrieved from the contacts application as soon as the user selects the name for tagging. it pretty much identifies a single person (rather than a group of people who happen to share the same name) and can be used across platforms and services; it's not specific to maemo or depend on one application.