title: Regarding GCM from multiple applications
body: <p>Hi I had used C2DM in my application to push messages. Now I have migrated to GCM and through it I can push messages to android application.</p>
  
  <p>More over there's one feature of GCM , through which two or more server applications can push messages to android application. How this feature can be implemented. For exaemple I have a news feed application from one provider. Now along with the news updates  some  third party local offers vendors can also push the offers updates.</p>
  
  <p>Thanks</p>