As a web app programmer (some weeks) I find the forms in HTML5 and the improvements in it (ie: setting a input type of "datetime" and having it do the Right Thing excites me). Of course, for a lot of these fields, the support is only on one or two (or three) browsers. Some of the improvements are such that you just add an attribute, which is ignored by other browsers, so you can do some good things right now without having to worry about it having a negative affect on your current forms.