[curryst]

Why on Earth wouldn't you just make it a setting on the phone and expose that to apps? Have the apps read it on startup, and save it as part of the user profile server side. It basically becomes an email address.

> So this can't be a global setting. Instead it has to be a per-app setting where like the app provider needs to register a callback to update the notification server and support that in app. Of course most won't.

They seem to do fine with email addresses. Again, I don't see why '[e-mail]' (or an alternative with auth embedded) would be absurdly hard for developers. Someone will write a 'SendPushNotification' function that parses out the domain to send it to and the auth to use and send it, just like we've done with email since forever.

Google will likely know where you're sending your notifications, but they won't manage sending them (though they could probably scrape the contents since they own the OS).