Reverie Framework is an extremely versatile HTML5 WordPress framework based on ZURB's Foundation, a powerful tool for building prototypes on any kind of devices. Reverie follows HTML5 Boilerplate standard and is hNews microformat ready. It is optimized for Search Engine while at the same time improve readability. It is extremely easy to create your blog, CMS, brochure and any other kind of sites with Reverie. You can see some samples on ZURB and how they make these prototypes. Did I just mentioned Reverie works well with bbPress 2.0 and BuddyPress 1.5, even without styling?
By describing it as a framework they're expecting that users will create child themes and add images, styling etc?