title: GCM, Android, iOS, using the same Sender id and Server key/authorization key
body: <p>Is it possible to share the same Server key and Sender id between your Android app and your iOS app? Otherwise I have to open two XMPP connections on the server which is a big mess.</p>
  
  <p>How can I configure Google Developers to understand that I want to use the same keys?</p>