EPUB3 is out there, but not all of its new features are supported by current readers. As a matter of fact, most of the new features are NOT supported at all (see above chart). Now comes Helicon Books with the Gyan Reader, which they claim will support all the new EPUB3 features, including:
- Full support for Scalable Vector Graphics (SVG) including animated SVG.
- Displaying mathematical formulas using W3C MathML standard.
- Support for RTL languages including page progression direction.
- Support for Media overlay (speak aloud as called by Apple) for audio books or mixed text and audio.
- Support for fixed layout mainly for comics and children’s book.
- Support for integrated video