I came across this filter for Gravity Forms when looking for an option to append classes to the confirmation message output when a form is submitted, and found it to be useful when a form is really long, or is placed further down the page. It will cause the page to jump to the confirmation message.
add_filter("gform_confirmation_anchor", create_function("","return true;"));
Reference:
http://www.gravityhelp.com/documentation/page/Gform_confirmation_anchor