How about Hide and Seek GO! People will be seperated into 2 teams and must use the real world to hide themselves and find others. Every 10 minutes it will show all the participating users where they are in the map soooo they wont camp in 1 place!!!!!! 

Or just turn that into an Assassin Creed Go! But all players participating can be seen on the map as a small dot but you just need to find them in the real world! 

Thats awesome!!! 

Metal Gear GO...flip over random homeless dudes in boxes to find Snake.

Duck Hunt Go. It tracks every Duck in the world and pinpoints it on your map, then you hunt them down!

I can imagine a lot of infantile games being released on this format though over the next few months, crap like Angry Birds and that is simply not the way to go about it.

AR sounds awesome. AR should be awesome. I don't want to see it being used to crap like Pokemon or finding ''treasure''/ lure type games.

Hopefully a dev comes up with something thoroughly engrossing.

This is kinda a place to start. Something like, without the pokemon BS would be great. (featuring a young Jane from Outsidexbox)

http://www.gamespot.com/videos/fable-iii-kingmaker-app-challenge-2011/2300-6283170/