McDonald's interactive Pong billboard brings big-screen elation, tomorrow's lunch

You could enjoy that Big Mac in the peace and artery-clogging quiet of your local McDonald's, or you could just catch the next flight to Stockholm, where Ronald apparently serves his meals with a side of interactive, outdoor gaming. It's all part of something called Pick n' Play -- a new (and pretty ingenious) ad campaign that invites pedestrians to play a game of Pong on a giant Mickey D's billboard, using only their smartphones. All you have to do is stand in front of the display, log on

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