Geo has so much potential and it looks like Facebook is working super hard to integrate this in a useful way. Checking in just to say "I'm at X" is just not interesting. Making location a part of a story (party, vacation, location where picture was taken...) is much more interesting and I can see it work out great if they find out how to tackle that. Their approach is very good, IMHO.
That being said, it seems like Facebook is building a record of me without me knowing, that I have no insight in. Friends tag me in pictures and tag my location now, too. That information is shown to various circles of friends. Now I'm not sure who knows what about me know since I neither created the information, nor had any part in sharing it. I suppose this reflects the real world in some way (people can talk about you whenever they want), it's just amplified in a major way.
That being said, it seems like Facebook is building a record of me without me knowing, that I have no insight in. Friends tag me in pictures and tag my location now, too. That information is shown to various circles of friends. Now I'm not sure who knows what about me know since I neither created the information, nor had any part in sharing it. I suppose this reflects the real world in some way (people can talk about you whenever they want), it's just amplified in a major way.
Very interesting and intriguing indeed.