Tristan Nitot discusses the open web approach and how Mozilla promotes openness, innovation and opportunity on the web. He notes that developing for desktops and mobile is challenging due to multiple operating systems, form factors, tools and APIs. However, the web is the platform of choice as it runs on all devices and is easier for distributing and updating applications. While the app stores provide discoverability and monetization, the open web allows multiple app stores and selling directly from a developer's website while maintaining compatibility with modern browsers.