Which isn't linked from the blog. If you click on the main blog title, it takes you to the main blog page at kivy.org/planet. There is a link to the website in the actual post there but it links to the download page, which doesn't have the description. From there you can click to the main page which has the description.
Are they ashamed of the software or something? I honestly can't comprehend why so many projects are so shy about telling us what they actually are!
Every page should have "an open source Python library for rapid development of applications that make use of innovative user interfaces, such as multi-touch apps." on it. There is no reason not to. Put it in small text under all main titles or something.