At tomorrow’s Seacoast WordPress meeting, we’ll be doing a round-robin session where many attendees have volunteered to do short presentations on what’s new in HTML5. I’ll be covering the “features previously known as Web Forms 2.0” especially placeholder, required, autocomplete and the new Input types and output fields.
The best resources I’ve found are the WHATWG reference on forms and the CanIUse web page and the jQueryUI pages and plugin pages.