I also live in Minneapolis, and I see a very different thing in the social media realm than the original author. It seems to me that when someone gets a smartphone, the first thing they do is install the facebook app and then start using facebook every moment they get a chance (even on blackberries from work).

The only time I see people really using location based services is when they're looking for directions (Garmin already made the inroads there). Personally, I use a lot of location based services, but I've also been working in the field for awhile.