Why? I thought it was interesting.

An interesting exercise, but maybe not practical, considering how slow your average home internet connection is, and how much data you're trying to stuff through that pipe. It's IMO likely that most people will end up scrolling faster than the page can load.

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.

Note the .jp.

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.

It's because of the way iOS captures scroll events. These scrolling sites never look right on iOS.

The goal is to deliver a cool experience first, and then reach many people second.

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.