The current update includes new features, like:

Min/Max validation in the Currency Controls.
The new fields are inserted below the field selected in the form, and not at the end.

Many other features in premium and developers versions of the plugin.

git-svn-id: https://plugins.svn.wordpress.org/calculated-fields-form/trunk@978213 b8457f37-d9ea-0310-8a92-e5e31aec5664