No current exhibitor list?

Just FYI, when I was looking through the pre reg book, I noticed that while there was a map with some exhibitors listed on it, but the page in the pre reg book on which the exhibitors are listed is blank.

Also, I know there is a partial list on this website, but it's clearly incomplete as there are some people listed on the exhibitor map which aren't on this list.

Also, what does "G" mean on that list; a bunch of exhibitors have that listed as their booth number instead of an actual booth number, so I can't figure out where they will be in the dealer's room.