Sigil - Sigil is a multi-platform WYSIWYG ebook editor. It is designed to edit books in ePub format.
WLPPR - Beautiful mobile wallpapers made from satellite imagery
Vellum - Free beautiful hand-curated wallpapers for the iPhone
Walllpaper - Turn Dribbble shots into backgrounds for every iOS device
Pressbooks - Create books: print and ebooks
Haaazy - Premium collection of high-quality hazy wallpapers