The idea of "mobile first" may be outdated as many mobile-driven businesses are now building complementary web apps designed for larger screens. The optimal screen size is still a moving target, and what matters is not devices but access to consuming and publishing information via screens. Most people spend most of their time in front of large screens, such as giant monitors, and it's likely that the primary screen for work will always be a large one. Therefore, when designing and building software to sell to employees or companies, developers should consider big screens as well as small ones, and not just focus on mobile-first approach. The concept of "mobile only" businesses may also be limited, as most people use multiple screens throughout the day, including TVs, which will evolve and mature to run better web-driven software. Service businesses pitching themselves as "mobile only" are likely setting themselves up for short-term success but long-term failure, as they need to track users across all screens to offer a complete service. The focus should be on Jobs, then screens, but never devices, by focusing on what Jobs users are trying to do and servicing those Jobs with the right depth of product experience suited to the situational context of use.