Smart House Technology

The idea behind a smart home system is integrating the various systems in your home into one unified system.  The desire is to create simplicity.  Your automobile is a great example of how a smart home operates.  As you walk up to your car you press a button to unlock the doors and not only do your doors unlock, but the lights turn on to illuminate your path. When you start your car (not only does the engine start), but the music returns on to the same song on your iPod you were listening to previously. The air conditioning or heat ramps back up, then your interior lights dim, and if needed the exterior lights turn on. Your seat might even adjust to you based upon putting "your" key in the ignition. Why shouldn't your home provide some of these same conveniences?