(Quick note #1: If you cringe at the idea of Facebook status messages popping up on your nerdy AR glasses while you're trying to walk down the street, don't worry, because I do too. That's not what this post is about. There are better design solutions, but that's a topic for another time.)
1. AR provides better context
While today's social tools provide content in a flat list, tomorrow's augmented reality tools will take that list and disperse it across the real world. This will mean that pictures will be discoverable where they were taken and messages will appear with those that sent them or aligned with their subject. The result will be a bridged gap between today's isolated virtual world of social networking and the current physical world. The significance is that context enables completely new meaning and significance. Viewing a friend's photos of their trip to the Italian coast while you sit in your cubicle at work is fine, but discovering those photos while you walk the trails of Cinque Terre would be wild.
2. AR is immediate
The level of immediacy of Facebook and Twitter today depend upon how often you reach into your pocket and pull out your mobile device. With AR, the information is simply presented in real time. You can look across your college campus, city block, or office building and literally see the conversation taking place. The experience of sitting in a stadium or walking through a park will completely change as you see friend's messages simply appear as they are shared.
3. AR enhances your memory
4. AR draws from the memories of others
In the early days of Facebook, the immediate present is all that mattered. Anything older was dumped into photo albums or buried behind page links. As the archive built up, so did the need for a better historical view - enter Facebook Timeline. As we continue to provide social content, our collective archives will not only grow in size but quality as well, containing as much high definition video and imagery as Likes and status updates. This rich collective archive of memories will become increasingly interesting, especially as the novelty of mundane status updates wears off (e.g. "I have a cold today…cough cough"). The social AR tool will ditch the idea of burying memories in the timelines of your friends' pages and instead bring the past forward into your current world. Ideas, thoughts, and memories will be scattered about, thus enhancing your present by drawing from the the past others.
(Quick note #2: As this collective archive builds, expect the emergence of tools (both AR and non-AR) that will help us make better use of if, such as storytelling tools that weave experiences across people, communities, and events or visualization tools that enhance the understanding of the aggregate.)
5. AR encourages real-world social behavior
The irony of today's social tools is that they promote anti-social behavior. The more we use them, we're interacting more in the virtual world and less in the actual world. AR encourages much different and integrated behavior. By integrating the virtual and the physical, today's walls break down and we're left with an enhanced version of real-world interaction. In the long term, this is better for us on the whole, encourages a world of real human interaction that is simply enhanced by technology, which is the way it is supposed to be.