Pretty. But do there exist web browsers that display these scroll-to-animate sites correctly? Using either mousewheel or dragging the scrollbar (or worse still, dragging on an iPad), it's never anything but choppy choppiness and I miss important bits of text as they scroll past entirely between the little click stops on my mouse wheel. Surely it must be possible to actually view these sites, as evidenced by the fact…
Recent version of all browsers have roughly the same performance. But you need relatively new hardware. Old p4 and on-board graphics card won't handle it.
Somebody else mentioned that it's on by default on Macs, thus confirming my theory about the "web-designer-only" build of Chrome (the same one that renders those extra blurry fonts that designers like to use on their blogs correctly). Chances are nobody with a Windows box ever saw this in action before they pushed it live.