Perhaps info would be 1. Last time online, and maybe times online during last month. or 2. a direct link to mail that person in your guild asking how they are since you haven't seen them in a long time. Not really sure what other info to include yet, that is open for discussion.
As far as Location, that seems to be something I would like to see on the map. Perhaps an Orange or green person showing all guildies locations so you don't have to invite them to team to know where they are. I think that would tighten up friendships instead of not knowing where others in the guild are. Truth is, they are hiding out alone doing their own thing, but which it would be nice to be a little more social. :)
As far as Location, that seems to be something I would like to see on the map. Perhaps an Orange or green person showing all guildies locations so you don't have to invite them to team to know where they are. I think that would tighten up friendships instead of not knowing where others in the guild are. Truth is, they are hiding out alone doing their own thing, but which it would be nice to be a little more social. :)