Jonnie Hallman of Destroy Today talking about the experience of building the site for the launch of Pencil.
I wanted the parts to reveal themselves as if you could feel them sliding out. The animation works when resizing the window as well, so if you drag from the bottom, you can actually pull the pencil apart.
This aside, I like the clean and modern interface of this website. The one-post-per-page style works nicely here.