Digital Book World has added a release about Vellum’s ebook creation software for OSX. From the article:
Authors who want to create their own digital books are often frustrated when converting their manuscripts into ebooks. A Seattle software company called 180g has created a tool, Vellum, that handles the technical ins-and-outs of building EPUB, MOBI, and iBook files—simplifying ebook conversion and giving authors more time to focus on their craft.
Vellum ebook creation software, introduced today, runs on Mac OS X and allows authors and small publishers to easily create beautiful ebooks for iBooks, Kindle, and Nook without any prior experience or training.