(Moved from offsite thread, now we have more info)
Gundam booth is inside Exhibit Hall. Booth 1805.
Turns out there is an offsite. I didn't know until I ran across it today. There's one in Kearny Mesa that has been up since Nov. 12. It stays popped up until the end of the month.
I know everyone is wondering, they do have the collectible edition of a Hello Kitty gundam. Other than the box being different, I don't know if there are any differences. They didn't have a lot and there were a couple of people hovering over them for a while. All I heard was something like "Get it. It's a collector's item."