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→Presence on Android
There's also a new feature called GCM Cloud Connection Server - (CSS)
http://developer.android.com/google/gcm/ccs.html - that allows applications to communicate
with the device via XMPPand on the client side "Intent Services". The app and the devices interact with CSS, which relays the messages back and forth.
There's a full example on that page, of a Python server interacting with the GCM service
So it's still up to the app to leverage this service to keep track of connected
devices to get device-level presence.
'''if we decide not to build presence, maybe we would just need to build that relay to make sure we offer FFOS apps the ability to implement presence the right way, like what Google provides on Android'''
XXX stuff to dig: can we use CSS with BOSH or with websockets
==Architectural Overview==
