title_body: Which ereaders support the EPUB3 format?
upvoted_answer: Some supported EPUB3 Readers are
  
  
  Helicon Books EPUB3 reader (for Andriod)
  Math jax
  Online ePub3 reader
  Gitden EPUB3 Book Reader (for Andriod and iOS)
  Kobo Aura HD (source)
  
  
  EPUB3 Support Websites
  
  
  EPUB3 Overview
  EPUB3 Support Grid