Naive implementations of XMPP on mobile can indeed get quite power hungry, but it doesn't have to be that way. Thankfully I've seen quite a bit of interest late

Naive implementations of XMPP on mobile can indeed get quite power hungry, but it doesn't have to be that way. Thankfully I've seen quite a bit of interest lately from mobile clients who wish to improve on this - all the resources are out there. Some links: - http://xmpp.org/extensions/xep-0286.html http://xmpp.org/extensions/xep-0286.html - http://xmpp.org/extensions/xep-0273.html http://xmpp.org/extensions/xep-0273.html - http://xmpp.org/extensions/xep-0198.html http://xmpp.org/extensions/xep-0198.html XEP-0198 is currently gaining adoption quite nicely for example, it allows for reliable streams (resume them without message loss or the need to re-sync everything if you get disconnected).