This is a game for Android and is invite only. I have been invited and am hooked.

Here's the world map so you can see if people are playing in your area. And here's the Wiki.

The rough run down...
It's a mobile (cell phone) game that requires you to visit actual places (also virtual 'portals') and 'Hack' them to add things to your inventory and attack the opposite faction or recharge the defences for your faction. There are 2 factions, green and blue. The idea is to dominate an area. There are many places that are already 'portals' and generally any place of interest can be one. If there are places of interest near you that aren't 'portals' already, you can make them so, though there is a 4 week acceptance policy.

This is not a couch potato game. You will need to walk/bike/drive to play this game.