title: How to get a list of in-app purchases from the Apple server
body: <p>I am developing an iPhone app which provides in-app purchases. However, after creating a product ID for an in-app purchase, I must manually update the list in either the client, or on a custom server. This seems a little odd.</p>
  
  <p>Is their any web service that I can use to directly communicate with Apple's server in order to get a list of registered product IDs dynamically?</p>
  
  <p>Or is there an API that my iPhone client can use to communicate with StoreKit to get the list of registered product IDs from Apple's server?</p>