Use the π Symbol on Your iPhone for Pi Day - The Mac Observer
Apple patent imagines a whole Mac within a Magic Keyboard
How to Type the Pi Symbol (π) on Your Computer or Mobile Phone - Tech Pilipinas
seenda Wired Keyboard for Mac, Mac Keyboard Wired Full Size Ultra Slim Quiet, US Layout, Keyboard with USB A and Type C Connector for Mac OS, Apple iMac, MacBook Pro/Air, Mac Mini,
Apple Invents a new Mac Computer Device that takes on the form factor of their Magic Keyboard - Patently Apple