The Secret Life of XForms

XForms recently reached the W3C's Candidate Recommendation status—and you need to know about it—because XForms isn't a form description language, it's a language for describing applications in a platform-independent way. Best of all, it integrates easily with technologies you already know, such as XHTML, XPath, SVG, and CSS.

http://www.devx.com/xmlzone/Article/17714