I know it would be rhetoric and needless to mention how HTML 5 is impacting, in fact, revolutionizing the art and science of web development. However, I would still take the liberty to say that HTML 5 is becoming de facto choice of web developers for designing efficient, simple and rich web applications. It is super simple to code, and offers native support for audio, video and animations, and amazingly powerful to support.
If you have not tried your hands at HTML5, try Facebook HTML5 Resource Center. It provides a good collection of tools and resources for beginners as well as expert HTML5 developers.
It also provides a basic platform to build, test, and deploy your web applications. With animation, offline capabilities, audio and more, HTML5 yields a new class of web standards enabling developers to build amazing products.
