http://u.qdnx.org/file/erkan-20150131T145414-6m9rr9n.html
next at !fosdem: "Using !XMPP on resource constraint systems, like !Android devices that are surrounded by a hostile mobile environment, imposes many challenges." in "Creating stable, reliable, push-enabled and battery friendly XMPP connections on Android" https://fosdem.org/2015/schedule/event/xmpp_and_android/