iGaming Business – Spreadbetting firm Sporting Index has announced the launch of an upgraded version of its mobile website. Developed in-house by the firm’s London-based software team, the company said that the new version would offer enhanced user experience and navigation through new drop down menus. Sporting Index said improvements behind the back-end technology of the website will form the ‘basis’ of its mobile development moving forward. “We’ve worked hard to upgrade our mobile site so that it exceeds our clients’ expectations for speed, fluency and slickness across an extensive range of handsets and platforms,” Sporting Index’s web and mobile…