HTML5 has a bunch of form-specific features that all make forms on the web better. Browser support for the features is all over the map, but many of the features can be thought of as progressive enhancement, so if it works, great, the form is better, if not, whatever. In this screencast we look at all the new types, attributes, and elements and finish up looking at real world forms and how they could be better if they used these HTML5 features.
http://css-tricks.com/video-screencasts/99-overview-of-html5-forms-types-attributes-and-elements/