title: Could one iOS application support multiple push notification registration?
body: <p><br>
  This is the first time that I approach the push notification service and I'm little bit confused. I 'd like to have just some conceptual help, not code.<br>
  I need to build an app that should receive and register for different kind of notifications. For instance in my app I'd like that users could register for PROMO notifications category and NEWS notifications category, I'd like that they could choose which one they want to be notified.<br>
  Reading the Apple doc, that was not so clear to me, it seems that once the app device is registered I receive just one token and seems impossible to receive more tokens for different kind of registration(NEWS and PROMO for instance), because the token is related to the app and the device. Is that correct?<br>
  The other thing that is not so clear to me is, if a device is registered for a specific notification is it possible to send the notification only to a set o devices?<br><br>
  If nothing of that is offered by Apple Push services do you think that is possible to manage everything like that:
  -I register the app device for notification if (PROMO || NEWS) are selected
  -I get the token
  -I send the token to my server giving also as additional info about the service which the user wants to subscribe
  -The server (provider) register the token and the kind of subscription (PROMO || NEWS)
  -Later when I have a notification to push I ask the server all the tokens registered for that specific category and then I send the notification only to those devices registered for that category.</p>
  
  <p><br>
  Thanks for helping me out I'm really confused.</p>