MrRick, nice build for a handy holding device. You can never have enough various holding devices each designed to work differently as where and how the work piece is secured is always dependent on what process is to be done. This will come in handy for long boards, jointing or some other form of edge treatment.
I was confused as to how this pony vice was to be secured to the bench until I followed your link to Veritas, those bench anchors are pretty slick.
Nice design and build.