Is this posted because the Ultrabook is interesting, or because the scroll-to-animate functionality of the website is interesting? For me, it's the latter, since I have long forsaken Dell.

Once the site loaded completely (which took a fair bit of time), I was able to use scrolling to move forward/backward through the animation of the demo. This is certainly an interesting UX, but after about 20 seconds of this I found it cumbersome.