Facebook has been successful with its mobile strategy, with 62% of its ad revenue now coming from mobile devices. The document discusses how Facebook is evolving its mobile strategy by separating features like Messenger into standalone apps to create a more fluid experience for mobile users and draw them in further. This "unbundling" strategy creates advantages for Facebook like more time spent on the platform and opportunities for more advertising. The vision is to create a set of products that allow users to share any kind of content with any audience.