Implement Multicast Messaging

[h2soft]

Implement Multicast Messaging

[iasandcb]

I'm sorry for this late reply. To be honest with you, I've not spent much time on implementation of gcm part. Do you have any idea or plan for the feature?

[hannesgassert]

Well, the implementation is trivial (see http://developer.android.com/training/cloudsync/gcm.html), the question rather how to define the API of this module and how much of the functionality to put into the module (e.g code to always respect the GCM limits of 1000 recipients per message etc.).

I don't need the feature right away, but if nobody else builds it before I need I'll take care of it.