If you scroll with your mouse, you can actually scroll past that IBM logo. It's an animation. After the logo, you get a nice huge button to the next section.
Oh wow, and it's even kind of a neat effect! Thanks for the tip.
Unfortunately it only works with the scroll wheel, or scroll events on a trackpad. It works finger-crampingly slow with my scroll wheel, about 15 full seconds of constant action, but I just found a laptop to try it on, and I think I finally got the effect they were going for with trackpad scroll effect. Much smoother and a neat effect. Spoiled a bit by my first, finger-cramping impression, but otherwise smooth enough that if I stumbled onto that experience first I might have thought nothing of it, or even been impressed.
Still see no reason for it not to responded to normal navigation keys.
I didn't even spot this at first, a friend did.