Japanese messaging app Line is planning a major push into the US market with a focus on casual gaming, as it approaches 500 million registered users and rumors of a planned IPO continue to ring stronger. The company initially_targeted the North American market last year, but, as executives told us, the focus_shifted to Latin America in 2013 because the "timing there was more critical." Now, Line_is turning its attention back to the US, where it believes that a combination of localized games, engagement from consumer brands and, of course, stickers — something it_is synonymous with — can help crack the...