Me too, but then reading what he's doing I realized that this technique could definitely give a page an extra bit of polish that could really make a big subconscious effect on users precisely because it's such an unexplored area. I imagine seeing this done the first time I might think I was looking at a Flash site.
1) Netscape Navigator did this 15 years ago, although not nearly as cool
2) Why did he just show a screenshot? Couldn't he have given, you know, a link?