I have sync in my '12 f-350, and I am disappointed with all its limitations.
Microsoft can do much better and has innthe past. I had a Clarion Auto-PC in my Hummer H1 in 1998, and it blows the doors off anything anyone offers today in many ways. The voice control was way better. It had cell phone interface with voice controlled dialing. There were many apps which could be run as it was built on Windows CE same as was running all the hand-helds like the iPaq. It had a CF card slot, and could interface with OBDII data port in the vehicle. It had navigation with its own GPS which worked better than that in my f-350.
I have wondered why there have not been any updates available for my version of sync, now it seems we know, Microsoft is on the way out it sounds like with Ford. Neither of the two top end Android smart phones I have used with the f-350 have been fully supported, and that bugs me more than anything.
If it was me all the OBDII data would be available on either display, and be user configurable as to what data is shown and where(be able to move/rearrange gauges to suit each driver).