Independent mobile app studio, Black Mouton today announces Smiley Lines 3.0.21, a fun and cute arcade-board game available for both iPhone and iPad. Smiley Lines offers a contemporary feel to the classic lines board game. Simply align 4 smileys of same color. It sounds simple but can be challenging with occurrences of the unexpected such as the annoying rocks. Version 3.0.21 introduces additional features, cute graphics and supports iOS Game Center leader-boards.