Just for the record, we are also working on a next-gen XMPP client, with decentralized blogging, file sharing, end 2 end encryption and all, and planing to do an Android port. Other projects like Movim also do similar things too, XMPP is definitely very alive these days.<p>Sending message to other devices is managed by message carbons which is in last call for being a standard XEP, and support is becoming more and more common.<p>XMPP is all but deprecated, very active, working well, with a large ecosystem. But is really badly known by most of people(I have by the way started a series of article to explain it: <a href="http:&#x2F;&#x2F;www.goffi.org&#x2F;tag&#x2F;talk_xmpp" rel="nofollow">http:&#x2F;&#x2F;www.goffi.org&#x2F;tag&#x2F;talk_xmpp</a>).<p>It&#x27;s really difficult to be heard these days, but there is a new wave in XMPP world (check our project: <a href="http:&#x2F;&#x2F;salut-a-toi.org" rel="nofollow">http:&#x2F;&#x2F;salut-a-toi.org</a> or movim: <a href="http:&#x2F;&#x2F;movim.eu" rel="nofollow">http:&#x2F;&#x2F;movim.eu</a>).