Square Inc files for IPO with Dorsey dual role in focus

Mobile payments company Square Inc filed for its long-expected initial public offering on Wednesday in a test of CEO Jack Dorsey's ability to take the company public even as grapples with a turnaround at Twitter Inc, which he also runs. Square's filing comes little more than a week after Twitter appointed Dorsey to head the microblogging site operator, which raised concerns about how he will balance his two jobs, a fact Square mentions in its IPO paperwork.