Scarlett is a Mac application created with convenient EPUB reading in mind. It supports full-screen mode,
Multi-Touch gestures, instant dictionary definition check and creation of spoken tracks (to easily take your books with
you on your iPod/iPhone).
In addition to all of that Scarlett bundles delightful EPUB QuickLook and Spotlight plugins.
The application runs on both Lion and Snow Leopard.
I hope that you will enjoy using it as much as I do.
Scarlett does not support DRM-encrypted books.