Yup, I was the one who built the XFactory X-60SC. Here's a couple of pics of it
Naked chassis
(from RCUniverse Nats pics):
I pretty much built it to see if it could be done. Thats what I like to do. Alex did really well at Nats with it. It was the fastest truck out there. ROAR had no problems at all with it. In fact, at least one of the competition tried to say it shouldn't be allowed because it wasn't a production kit and ROAR basically told them to sit down. They liked the truck.
As Darren said, it'll probably never get in to production. The money to kit it needs to go to other projects right now.