I may have dabbled somewhat...
And yes, that's a sourceworld for Inquisitor that I'm working on. Inquisitor is my favourite system, being a somewhat avid Warhammer 40k player aside, I think it's hugely underrated and great fun. It was a right bastard to learn, though, but all good things are worth some effort =)
For those not in the know, Inquisitor is tabletop RPG in the most literal sense - it's based on miniatures representing characters running around in modeled terrain. Pretty much everything is worked out on a percentage roll on a D100, and a whole heap of things come into account, especially for damage. Complicated, but when you roll well enough to hit a guy in the head with an anti-tank missile from across the board, causing it to explode in a shower of goo, it's great.