[hrktb]

This seems to ignore the case where a form is pre-filled with previously inputed info or some defaults. It feels more natural to clear the form and write all fields with new infos than to overwrite everying field by field.

now it's a long time I haven't seen a useful reset button.

[bergie]

I'd use form placeholders, not values for that.

http://diveintohtml5.org/forms.html#placeholder

[f00li5h]

i'm pretty sure your browser's edit boxes support some kind of undo command... one that will only reset the contents of that field, rather than the whole form ...