? ???? ? ??? ??? ??? ? ? ??? ? ???? ?? ?????? ?????. ??, ??? ??? ???? ????? ??? ? ? ??? ? ? ????. ??, ?? ??? ????/??/??/????/?????? ?? ???? ?? ?? ??? ?? ?? ?? To cater for the cell-savvy inhabitants of Busan, “??” has made a cellular-only app. This app features locale-dependent