The only difference, for the sake of the demo/pr stunt, was that the glasses have a 3G or 4G Radio and G+ Hangout integration.
Think about it, though... The experience of wearing the glasses is probably very difficult to properly explain or show. You can't really put it on a camera and get a true representation. They have a long way to go before it's ready.
If you watch the video closely they actually do have GoPros strapped to their chests, and it looks like they then used the GoPro HD footage to create the blog post video about the whole thing.
Think about it, though... The experience of wearing the glasses is probably very difficult to properly explain or show. You can't really put it on a camera and get a true representation. They have a long way to go before it's ready.