Interesting.
I have the cheap-but-effective
Filtrete by 3M Wifi-connected thermostat.
It was less than $100 shipped from the US (not sold here, AFAIK). I checked my home temperature from Paris a few weeks ago and ensured that things were good temp-wise at home (to avoid burst pipes, etc if it got cold back home).
it's essentially a programmable thermostat that you can adjust from your iphone or android device.
I find it great on those lazy days when I want to get out of bed and it's cold, I jsut reach over, grab my phone and add some heat, doze for 20 minutes and then boom, it's hot and I want to get out of bed. Nice alarm clock that forces you out of bed at 5 or 6am, heat is
It's also nice that my wife doesn't have to yell down for me to increase the temperature (what is it about wives that they're always cold?) she can just do it form her iphone.
Web connected thermostat is A+++++ ebayer.
Only
slight downfall is the wifi uses some pwoer, so you need a dedicated C-wire (12V source). That was easy, as my wires behnd the wall had a bunch of unused wires coming up so I connected the C wire on the thermostat and at the furnace and boom, power.