I hope nobody ever thinks this is a good idea.
Not to mention, this will murder any mobile device or weaker laptops.
Cool piece of marketing, but ultimately if the goal is to deliver a cool experience to as many people as possible, this implementation may not be ideal.
As I mentioned above, our internet speeds are crazy fast. I downloaded the whole thing in about 3 seconds on my home internet, 10 on my 3g ipad.
The only issue with the ipad was that you couldn't flick and have it just scroll down.
If the experience isn't cool, then it's not going to reach many people. I figured people would talk about usability despite the fact that it's a marketing page.