Apps for Cars

It dawned on me on a recent long drive that the next big thing will be apps for cars. Some new cars have built in satnav, I personally use my iPhone as a satnav (I have an app for that!). If you have the factory fitted satnav, you are stuck with that. If the car manufacturers were to stick an iPad (or similar device) on the dash you could have whatever satnav you wanted and there would be a million other apps designed around the drivers needs. Microsoft have been talking about the car computer for 10 years, but really they should just stick in the sensors and let the app developers do the rest. I just wanted to get this thought down on wax so that I could say "i told you so" in 2030!