Adobe is pleased to make a technology release available of the Adobe® Dreamweaver® CS5 HTML5 Pack extension. This extension provides initial support for HTML5 and CSS3 in Adobe Dreamweaver CS5, and helps you easily create HTML5 pages and CSS3 styles. While HTML5 and CSS3 will not be finalized for some time, the extension provides support for a set of currently-implemented features.
The update and more information is now available on Adobe at http://labs.adobe.com/technologies/html5pack/.
To download the Adobe Dreamweaver CS5 HTML5 Pack pack: http://labs.adobe.com/downloads/html5pack.html