Can you guess why 2580 is the 28th most popular PIN? It’s not obvious until you look at a keypad. Those numbers make up a straight line down the center of a phone keypad, making it easy to remember if ...

is that rapid numeric keying is not what this rotary dial numpad keyboard is all about. In fact, it’s actually an April Fool’s prank [Squidgeefish] played on a retro-phone-obsessed coworker ...