Pretty interesting idea.. however, as we all know patents don't always come to production. I personally like the idea. I do haul an ATV, however I use a trailer because I have a tool box in the bed of the truck. But I know a lot of hardcore riders would love this.
If it was like a removable side panel for the bed wall of the rambox that's already a flat wall, had a tab and a channel in the tailgate kind of as shown I could see potential for it being a really useful system for anyone that hauls wheeled toys in back that is