If you look at the very beginning, before the interview, you see there are actually 4 bebooks, 3 on the table (black bebook 1, black mini, white bebook 2) and 1 white mini in the hand. The white mini is white in front and back, the glossy bebook 2 looks white in front and black in back. The bebook 1 and the mini looks the same, the buttons on the bebook 2 are different. As Sweetpea mentions, it's the glossy one where he shows the sim card slot.
I listened again and I don't hear them mentioning a 8" model. Something I didn't hear before : they pretend that for the 3G on bebook 2 you will not have to pay a monthly fee (as a gsm), all is included in the price. I just hope, that they will not be limited to one store, as is the case with the kindle.