Yes, I too have been playing #ingress . It's amazing. You must check it out.
It really feels like one of those pivotal shifts in the way we interact with our technology. We finally see what happens when console-quality graphics, fast networks, and huge amounts of data combine.
Add to that creativity, storytelling, great gameplay and air of mystery. This yields a highly addictive game you can spend hours and hours playing, discovering, and communicating with new people.
No invites yet, but you can request one at the site. (Though if I do get some they're going to people who join the beleaguered #enlightenment in Minnesota!)