It is surprisingly large that there are not many people who think so. I also use smartphones and personal computers everyday, but the high visibility can not be applied to paper.
Such a calender has been announced that people who love paper say "I'm kore!"
Its name is "Magic Calendar (Magic Calendar)".
"Google Calendar" that can manage appointments on the Internet. When you enter a schedule there, the information is automatically reflected in the calendar made of high-definition electronic paper, it is exactly an item like digital and analog good point.