Explore the development of Chakra, Microsoft's new JavaScript engine for Internet Explorer 9, in this JSConfEU 2010 conference talk. Dive into the engine's performance improvements, including compile heuristics, object type system, and hardware acceleration. Learn about the integration of JavaScript into the browser, interoperability efforts, and the use of the ACMA Test Suite. Gain insights into Microsoft's approach to enhancing web performance and developer tools in this comprehensive overview of Chakra's capabilities and design philosophy.