Other stuff being replaced by smart devices: watches, alarm clocks, portable radios, cheap digital cameras, spirit levels, dictionaries and perhaps soon your wallet and physical mass-produced books. Looking at some of the creative stuff people do with mounting their iPad in vehicles, perhaps iPad-like devices will replace traditional dials in cars in the near future. The only reason we even consider calling them "mob…
The dashboards of the near future are going to start piping a lot of control over to paired devices, but I think they'll maintain their current level of sophistication in and of themselves. But those paired devices will be a huge opportunity.
And in the same arena: automotive diagnostic machines are going to be replaced. (e.g. OBD tools becoming an OBD->bluetooth adapter + software) As well as repair and service manuals. (Who needs a book to tell them when to rotate the tires if the car tells your phone?)