Ooh, I really like the idea of this smartphone card game on Kickstarter: Game of Phones.
One player picks a card and gets to judge that round. They read the prompt to everyone else. Something like ‘Find the best #selfie’ or ‘Show the last photo you took’. Everyone finds something on their phones and shows the judge, who gets to choose a winner for that round. First to win 10 rounds is the overall winner.
This is pretty much what people do when they get together anyway, why not make it a game?