Worked on this yesterday and today between Bowl games and NFL games. It is a mount for GoPro that attaches to the Prologo U-Clip or the Topeak QuickClick adapters

This one was the first version and I didn't like just how far back and the angle of the actual mount, the third iteration of this is what I eventually uploaded to Shapeways

Prologo / Topeak GoPro Saddle Mount Clip
Probably do the same mount for the Virb if there is interest.