Important news. Mobi, which is what Kindle uses now, is a pretty limited format, but HTML 5 opens up the world to the Kindle. Here’s the announcement from their Kindle Format 8 page.
Announcing HTML5 Support in Kindle Format 8
Text on background images
Numbered and bulleted lists
And many more!
We’re pleased to announce a wide range of new features and enhancements – including HTML5 support – coming in Kindle Format 8 (KF8). KF8 is the next generation file format for Kindle books – replacing Mobi 7. As showcased on Kindle Fire, KF8 enables publishers to create great-looking books in categories that require rich formatting and design such as children’s picture books, comics & graphic novels, technical & engineering books and cookbooks. Kindle Format 8 replaces the Mobi format and adds over 150 new formatting capabilities, including fixed layouts, nested tables, callouts, sidebars and Scalable Vector Graphics, opening up more opportunities to create Kindle books that readers will love.
Children’s picture books come to life with brilliant images, fixed layouts and Kindle Text Pop Up.
Comics and graphic novels
Comics and graphic novels are presented in high resolution color with Kindle Panel Views.
Technical and engineering
Technical and engineering books are created more efficiently with Cascading Style Sheet 3 formatting, nested tables, boxed elements and Scalable Vector Graphics.
Cookbooks and other titles requiring rich design look spectacular with embedded fonts, callouts and sidebars, drop caps and text on background images.
The list of new capabilities in Kindle Format 8 can be found here.
Upcoming enhancements to Kindle Publisher Tools will make it easier and faster for publishers to create high quality Kindle books. KindleGen 2 (available soon) creates Kindle content from a wide variety of sources including HTML, XHTML, and EPUB. Kindle Previewer 2 (available soon) provides an easy way for publishers to preview how titles will look on Kindle devices and apps so they can be confident that their Kindle books look great.