Finally got around to installing the dock in my Mountaineer. Just for a "proof of concept" trial I put in an old Kenwood single-DIN HU that I had lying around. Used 3M heavy duty "Velcro" on both the bottom of the dock and in the slot in the dash adapter (this one is from Metra, Scosche also makes one, but I don't know how well that will work).
Streak is tethered to my cell, so I get internet access for nav, tune-in radio pro, Iheart radio, Google Music, Netflix, etc. Unit is powered by the OEM T-Mobile car adapter. No video out yet (and I was wondering if the line out audio cuts out if the HDMI is used or not). I've got the USB cable hooked up and running to the glove box for access, but I've got no use for it as yet.
Simple, easy hookup, but it looks pretty decent when the tablet is hooked up, and despite washboard roads and high speed sharp turns, it stays put and working. Now I just wish there was an app that would allow me to use the tablet as a bluetooth adapter for my phone, so I can place and answer calls...