a lot of OBD-II information is locked out from those who repair cars.
And from the owner of the car. I drive a Renault Espace, when it is working. In order to get an idea of faults on my Renault I bought an OBD-II interface and bought a reader that was designed for a Vauxhall car, there is non available to the general public for my Renault.
If this proposed Android device allows the fault codes to be read from the engine so that I can phone around mechanics with symptoms of the car's problems then this will make me hugely less dependant on the dodgy big Renault garage in my area
Well at the moment I now have an interface for this car, but it was not easy to get the equipment I needed. Renault had no interest in letting me read the fault codes on my own car, they want me to go to the big Renault Garage on my town and hand over lots of money every time I get a fault light up.
Well I have a superb mechanic lives 5 minutes up the road from me who can do wonders with the mechanical side of car maintenance but cannot use the OBD-II interface, and having the fault codes is all he needs to get the car working.
So I would be delighted to have the android device connected to the car, but only if it gives me diagnostic information about faults.