Norwegian company Defa (mostly famous for the car heaters and car battery chargers in European Nordic part of the world) http://www.hyttami.no/ or in Swedish http://www.defahome.se has launched a HA system based on some wireless protocol that can turn on and off lights, heating and have a module for presence.
The good thing is that the service is based on GSM modem that work with low cost over whole Europe and it seems to be dead simple to set-up.
The bad thing is that every module has basically the same price as z-wave modules but there is like 3 of them to select from, compared to the 700 z-wave devices certified right now but they provide support for you if you need help to connect to a device.
Oh, did I mentioned that they have a yearly fee of about 100€…
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