Unless you have a very quiet car, voice activation is going to be a problem. We have it for a few things in QCar, but it is not really usable as a primary input/control method. As for navigation, at the moment, the only solution you can buy is Routebuddy. We do have navigation for QCar, but we need to sort our business issues with TeleAtlas before we can offer it.3. GPS with voice activation (i tell it what to do) and turn-by-turn guidance
No problem - a phone can be controlled using standard AT commands, steering wheel buttons are usually easy to handle using Phidgets interace boards. If you want talk-thru (using your Mac's microphone and speaker for phone), BluePhone Elite does that rather well.5. Bluetooth phone with in dash address book/control and perhaps steering wheel button control
Again - doable with Phidgets or similar interface board. I would personally not connect the servo to the original rotary controls, but directly to the elements they are supposed to move, but that's a detail.6. Complete touch screen control of temperature control system using electric servos to remotely control my rotary heater controls (which would be hidden in the dash). This would require software that can be programed to know when a given servo is at max cool, 75% toward heat, on a/c, max a/c, vent, or any other position on the three rotary knobs.
It is not a pipe dream, almost everything you describe can be done - most of it rather easily.I'm guessing it's a pipe dream (espeically since I can't program it myself) but does anyone have any input on this. I'm totally in for developing the mechanical portions if it'd hep others... I just want a totally integrated solution...on a MAC!