I had a problem with your link, but I think these might be some of the virtual presentations you were linking too:
Really cool stuff! And it's only going to keep getting better and better. Or maybe worse and worse if you think about the addictive, drug like effects virtual reality might have on some of us. All of us? How good can the virtual worlds get? We're going to find out one day real soon.
If I lived here:
I could see how the virtual world might have a certain appeal.