title: Multi-domain deployment of Google App Engine (GAE) apps
body: <p>We would like to develop and sell custom commercial GAE applications. I would like information on the deployment of GAE applications on arbitrary Google Apps domains (i.e. not appspot). </p>
  
  <p>Suppose our company is abc.com and we are selling app to def.com and xyz.com. What are the steps to deploy our app on our customer's domain? </p>
  
  <p>When an app is deployed on many domains:</p>
  
  <ul>
  <li>Is the code duplicated or shared?</li>
  <li>Is the datastore definition duplicated or shared (or more precisly the kinds)?</li>
  <li>Any domain attribute add to the entity?</li>
  </ul>