I posted this in the article itself, and I think it's relevant here: The concept of location-based communications is a very powerful one. Imagine that you were

I posted this in the article itself, and I think it's relevant here: The concept of location-based communications is a very powerful one. Imagine that you were new to an area, and you wanted to meet locals with similar interests. You should be able to create a tag about something that interests you, and broadcast it out to people within, say, 1-2 miles and invite like minded people out to coffee, or a movie, or some sort of similar event. This provides a way to create real-life followers and build interests off of that. If nothing else, I my end up writing something to do this myself... I've wanted an app like this for a while now, I'm hoping that I'll be able to build it on Google+ when their API comes out.