Funny you referenced that particular video... I was standing behind the camera when Robert did the interview
In the day that was an AMAZING setup! I had a system like that set up on my CarPC using the free Road Runner software.
With current technology, you can do that with just about any phone or tablet. I have a OBDII Bluetooth adapter in my truck (My Fiero has stock 2.8 thus OBD 1). With it I can display the info in graphs, gauges, analog style or digital on either my phone or on my tablet. You can arrange the gauges, resize them, change the colors, styles, and get just what you want, and then have unlimited screens that you can swipe through.
Here is a complete setup for $85 that includes both the tablet and Bluetooth OBDII adapter.
You can even use the Torque app and overlay gauges or data directly on top of video:
I'm not trying to put a damper on what you are trying to put together, it's just when that video was made, the iPhone didn't even exist yet
The company went out of business, it's sad to say, for a reason. Technology pretty much replaced what they had.
Trust me, I know this all too well, and unfortunately from experience
I was back and forth to China 3 times working on a project for in-car systems similar to their product. It did GPS, Streaming Internet Radio, OBDII, and so much more. Everything that can now be done with the phone in your pocket. If we had gone to market just a few years earlier, it could have been a very profitable venture. We had this working at trade shows before Ford Sync or the iPhone were ever heard of.
[This message has been edited by JohnWPB (edited 01-23-2015).]