Tangible Benefits from Having Locative Media in my Daily Life?

In honey I geotagged the kids, Douglas Rushkoff talks about cartography becoming a read/write medium and mentions a couple of ongoing projects in the locative media world. He mentions the reluctance of the mobile phone industry to offer location lookups. Most importantly he finishes his article by questioning the usability and usefulness to the user of locative applications:

Although to a wireless enthusiast like me, the possibility of locative media feels positively revolutionary, there are still too few tangible benefits to be gained from having locative media in the daily lives of most people.