Fresh and Mobile

“If I leave my wallet at home, I may not notice it for the whole day,” said Ms. Kim, 21. “But if I lose my cellphone, my life will start stumbling right there in the subway.”

Check this interesting NY times article about the mobile lifestyle in South Korea
So everything is operated via mobile : buying food, train tickets, watch Tv, check weather, play role-playing game, marking their attendence at school, sending money,  etc.