Engadget has an article about a Land Rover concept car that uses an iPhone to control the vehicle.
Aside from the gee-whiz cool factor of the thing, you really have to wonder about the logic of having a touch-screen electronic interface for a vehicle with the core purpose of traveling in harsh conditions. It seems to me that Stewart Brand once said something along the lines of “when complex big systems fail, they tend to fail catastrophically.” Just for fun look for yourself which laws of Systematics this thing might break under and give me a yap in comments.