Samsung takes to Twitter to refute a report that the company is going to launch the successor to the Galaxy S III smartphone, the S4, in March 2013. - The worlds largest mobile handset manufacturer, Samsung, turned to microblogging site Twitter to quash rumors that the company was planning to launch the follow-up to its wildly successful Galaxy S III smartphone, the S4, in March of next year. The post, written in Korean, can be loosely translated ...