The module's web page http://drupal.org/project/nat states "when a node is created, an equivalent taxonomy term is automatically created in any associated vocabularies."
I find that I don't have enough information to understand what the module does. What information from the node is used to create the taxonomy term? The title? Something else? I think this node may be a perfect solution to a problem I have, but it's impossible to tell. "This module is a simple but effective way to create node-node relationships" sounds very promising, but without an example or some detail, I'm at a loss.
There's no link to any documentation on the module's web page.