Thats actually a really good idea! I especially like how it doesnt effect the stock bumper at all. If you want to remove it, just take the hitch off.
Two questions/comments though...
1) Why did they leave the center support so long? I could see if you needed to mount a 3rd brake light..like the TJ guys and the older XJ guys do. But the 97+ are high enough.
2) Where would you mount your lic. plate? Again...The thing that is most attractive about this is how it doesnt require modifying the stock body. So I guess you could mount the plate to the center of the spare wheel, or something, but you'd need to make a light for it, and secure in a way that wont let someone just yank it off.
Just my thoughts... I like it though...
J.