Oh, man, this is just too cool. And sadly I just upgraded to an iPhone 4, not 4s (I am both a sucker for a deal, and normally filled with buyer’s regret). But anyway, this guy used the Radio Thermostat API (which I mentioned in my last post) together with a Siri hack to add voice control to his thermostat. How awesome is that? (The thermostat he used is the 3M-50 available at Home Depot, a rebranded version of the CT-30 available at Amazon [amzn]).
Looks like his code is here.