WELP I was wrong. Sources have said this is the genuine article.
I'm going to have to debunk this one. The average floor tile is 16 inches by 16 inches. Now look at the picture closely...
My AT-AT is 20 inches high. Now look at the depth of this piece. It doesn't look big enough to hold everything we talked about here. The design seems a little different from the one in my hands right now, but not significantly different enough to be the beast we are waiting for. Hey, if it is the genuine article, I'll be the first to say I was wrong but for now, i'd say this is not the droid you are looking for.
Thanks to ACTOYS.net for the look!