I was wondering if we’d ever see an app like this and it looks like Viper SmartStart might fill the bill. You can turn on the car, unlock the doors and trunk, control the alarm, and turn on the heat. You have to purchase a $300 module for your car to use the service which costs you $30 a year (the first year is free). That said the app is free. I’ve never been one to spend money on this kind of thing for a vehicle, but this might change my mind. It just makes so much sense to be able to do these kind of functions from your phone. Intriguingly the range of this is infinite since it works over the celluar network. Or, maybe that should be the range is infinite if you can get a signal from AT&T.