Stewart Mader left the answer in the comments, but I had to share the visual and write up from Jayne, who writes the Web Outside blog: Exploring Mobile Technology in Places and Space. Her blog is about:
This blog focuses not only on the networks and applications themselves, but on the social and cultural ramifications of this growing “outernet.” Since The Web Outside– technically and conceptually– is still in its infancy, much exploration will also center around the current web and mobile solutions that are helping to shape it.
Jayne listened to the podcast and write this post (and found the above photo in flickr).
The “new” concept of checking in at a location and declaring one’s presence? Don’t be surprised if your golden retriever is rolling his eyes at your novice ways… He and his buddies have been pissing gleefully ahead of the social networking curve for centuries…