NATS 4.1 is the release that will be out very soon. They just had 5 of us affiliate webmasters out last week to preview it, add suggestions, feedback..etc...
Here is a link to the preview of it that TMMJohn posted
http://www.gfy.com/fucking-around-and-business-discussion/993518-sneak-peek-nats-4-1-a.html
4.1 is gonna be a NECESSITY!