GCM send from Android

[Bertrand Marlier]

Hello,

I would like to implement a messaging app between Android phones but without server. The registration IDs would be exchanged by SMS, mail, whatever... and then the send usually done by a server, would be done by an Android phone instead. The (small) message payload would be in the Google push notification. 

Although this look a bit like a wrong use of the GCM framework, Is this technically feasible?

I see several issues/questions already:

1 - API server key must be embedded in the Android app . But, can't we use a app-signed Android Key instead?

2 - Registration IDs may change over time. But, isn't the Canonical ID's purpose to update the sender with correct Registration IDs?

3 - Is this allowed by Google?

Thank you

Bertrand

[mustafa iqbal]

Technically speaking I don't think gcm cares from where you send messages (u can even cUrl it from a cmd line)

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[yan...@gmail.com]

It's sound like you try to bend the gcm technology a "bit" J, the idea of GCM, the concept itself is the server. I would say that you are trying to do to GCM  what emule did to napster. Do a p2p protocol by using gcm

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