What can I say? Scroll that page, my dear friends and see something very cool.
This is a very clever design. Its minimal and sleek, with very few elements… initially. Then, as we scroll down the page, we are shown something beautiful and engaging… and then we see the sign up form. I find that endlessly clever: Hit them with something awesome and then ask them for some information. What a great strategy to engage users and pique their interest.