In an era before Outlook and Google Calendar, people tended to keep their personal schedules in a pocket planner and group or family calendars on a wall calendar. Smartphones have replaced the former but their larger siblings — tablets — haven’t really replaced the latter. Part of the reason for that is because these calendars should be viewable at a glance, which mean a constant display.
Calou is the closest a digital product has come to recreating the classic wall paper. Like an e-reader such as the Amazon Kindle, t uses e-paper technology to maximize battery life. Calou’s developer, Hamburg-based TECHNIKmanufaktur, says that the iPad-sized product can last two week without being charged. The tablet is encased inside a wooden dish-like enclosure that has a magnetic front for small notes and photographs.