NORWALK, Conn.--(BUSINESS WIRE)--TMC and Crossfire Media today announced Jeremy Cohen, Software Engineer, iOS Core Systems Team at Facebook will present a keynote at DevCon5 HTML5 & Mobile App Developer Conference, July 20-22, 2015, in New York City at New York University’s Kimmel Center. DevCon5 will focus on using HTML5 and other development tools to create mobile apps that provide a superior user experience while appealing to large numbers of those users. Cohen’s keynote presentation wil