The article is quite light so far. I am sure it brings other improvements than just a reduced file size. I would hope that at least some features of JPEG2000 wo

The article is quite light so far. I am sure it brings other improvements than just a reduced file size. I would hope that at least some features of JPEG2000 would make it in this format. Maybe also a convenient way to pack several images in a single file without resorting to css clipping tricks.