Hey Kraig,
I manufactured one out of the post style QC stand and a steering wheel desk topper. Cut the desk topper so I saved the 90 degree bend at the bottom and mounted it to the flattop of the QC mounting plate with small nuts and bolts.
Glued on non-slip and it holds the computer in place on all but the bumpiest roads, (NYC, Detroit, etc). You can get very thin bungees or elastic cord and place around the computer by the hinged screen for more security.
And when you,re done using it, loosen the bolt and flatten it out vertically. Works great for us, and I picked up the used stand for $20.
The Gibster