This document discusses HTML5 capabilities and their implementation in Google Chrome. It describes new HTML5 features like <canvas>, <video>, local storage, and workers. It notes that these features allow web applications to have capabilities that previously required native apps. The document demonstrates several new HTML5 features and discusses ongoing work to further expand web application capabilities in areas like geolocation, 3D graphics, and additional APIs. It positions Google Chrome as a browser that provides native support for emerging HTML5 capabilities.