Those are all ancient PC mobos though.. I'm seeing ISA slots on a few.
The fourth to last one looks more recent server mobo and they are all SMT caps.
Unless someone comes out and identifies it as an off the shelf dev board, it's my opinion that it is a custom board (or two), that it is not what was shown at the Toy Fair, and that they don't actually have a working platform yet, hence no real demo video.