Since launching blogs last year, we've heard from several people that they'd like to be able to have static or persistent pages on their blog, for creating things like an About or Contact page.
As you can see on our roadmap, we're working on this feature now. In our normal style, it'll be a tiny addition that works by letting you “pin” individual posts to your blog, adding a link to the top of its home page, without any extra work from you. Any pinned post's title will become the link text, and for now, they'll be added in the order you pin them in. Later, we plan to make it easier for you to rearrange them.
Pro users will see this new feature as soon as we launch it within the next week.