How or why is this better than an iPad with the Apple Pencil? It had better be wayyyy less expensive or better in every aspect otherwise it is dead in the water, imo.
They don't go into sufficient detail on how they solved battery and wireless communication, as far as i could find out from the video (site itself seems hugged to death at the moment). If those components are the "backing" of this illuminated paper, then that might make sense; I could see those be thin enough to be inexpensive, yet reusable enough to not be an environmental concern.