Rather than fumbling to open an icy door or waiting a few minutes for the car to start and the heat to come on, you can start the car using a keyremote and even turn the heat on, so that by the time you get to the car, it's on and warm.
Today, Directed Electronics, who make the popular Viper remote start systems, are taking remote-start one-step further: start your car with your iPhone. The Viper SmartStart system combines the Viper system with an iPhone app that acts as a remote control for your car.
Here's how the system works: if you have a compatible Viper remote system installed on your car, you can download a free iPhone app and configure your car to hook up to your phone. Then, you can start your car and turn on the heat before you head out to the driveway. The Viper iPhone app can also lock your car (or unlock it) remotely too.
The advantage of the iPhone app over the traditional key-remotes is that the range is much larger than what you get with IR. I'm assuming the system works via satellite, because Viper calls it "virtually unlimited." This would definitely be convenient for anyone who has a relative or a spouse with a predilection for locking their keys in the car.
The Viper SmartStart iPhone app is available for either new SmartStart systems (retail price $499) or existing Viper users can get the SmartStart module (retail price $299) from Best Buy stores beginning today. If you like the idea of keyless entry and remote-start, bringing that sort of functionality to the iPhone makes perfect sense.