The game seems to have a second screen feature that allows you to do other stuff from an external device. I've been trying to find out more and found a few pages and videos that describe this companion app. However I can't actually find any solid details and it sounds quite fun and something I'd like to play with.
Can anybody tell me where I can find the App that I need or otherwise how I can make use of the second screen functionality?
Edit: Since somebody asked what exactly I meant the functionality that I believe it adds is just things like a map showing where you are and other useful information that you'd otherwise need to go into menus for. I believe there may be some options for offline minigames as well (ie offline for the main game, you'd have to be net connected for the app still). Also what I saw suggested that it was an apple and android app.