Twitter is close to unveiling its autoplay video, finally giving marketers the format they say is a must for branded content.
Nearly three years ago, Facebook CEO Mark Zuckerberg proclaimed that the "iPad's not mobile....It's a computer.
Yesterday, we provided an in-depth look at how mobile could become the premiere advertising channel. But there's obviously plenty of work to be done. So we asked industry players: What is mobile's big challenge going forward?