So now, this is cool beyond all words. Really. I few words, Google is about to release what can only be called a MMORPG (or at least has the potential to become one), where the "virtual universe" is not Azeroth, Atreia, or some random behind-the-wormhole Eve universe, but nothing else than the real world itself.
"The concept is something like World of Warcraft, where everyone in the world is playing the same game," (...). Players are on one of two teams: "The Enlightened," who embrace the power, or "The Resistance," who fight the power. Anyone can play from anywhere in the world, though in more densely played areas there will be more local competition for resources.
See the article1 [allthingsd.com], article 2 (more info) [cnet.com], the website [ingress.com], and otherwise the trailer below. The trailer is a bit confusing unless you remember that those people are actually just playing.
I have already downloaded the game and requested an invite ^_^