PUBLIC MARKS from micah with tag xml

XForms improve on HTML Forms by separating data, logic, and presentation into three distinct areas. This clean separation makes it easier for developers to customize the interface for users and devices, without rewriting the form or its associated logic. XForms also includes a powerful event model that allows the user to easily bind a form control to a piece of client-side logic without extensive scripting.

SAX is an event-driven model for processing XML. Rather than building a complete representation of the document, a SAX parser fires off a series of events as it reads the document from beginning to end. Those events are passed to event handlers, which provide access to the contents of the document.

Mixed reviews on digg, but worth a bookmark for revisiting, I think.