Hinge cutter?

I watched a you tube video uploaded in 2008 demonstrating a hand tool called Hinge Pro' for cutting hinge slots in doors. In the video was Clive Holland from bbc cowboy trap on stage and the supplier seemed to be Tool-Net.co.uk.

Although it only showed cutting the one size hinge it looked a good tool in the demo. I tried searching can't find it anywhere. not even on Tool-Net.co.uk
Perhaps too expensive. Only cut the door hinge slot and not the frame slot because of the architrave. Only cut one size slot, who knows?
Tool-Net.co.uk doesn't stock it anymore.

Many thanks in anticipation for some history on it.