Disagree a bit. Even though google knows where am I or my cell phone data I have choice to turn off GPS, can turn off cell phone. Can you afford to turn off thermostat ? Also, as of now they don't collect data. What is guarantee that they won't do in future ? All they say is we have changed our terms and conditions and don't even ask or care about whether we accept or not. Having motion sensor that sense your presence and having that data on someone's server is always scary. Right now Google is king, but will it always be, given the race to top in SV ? So why won't they make further efforts to collect more data ? Not that I am naysayer but I didn't like the news when I read it yesterday.