Did Apple jump the gun with the new MacBook's sole USB-C connector? If so, it's in keeping with its character—and not the end of the story.
The Macs and Windows PCs of a couple of decades ago shared few common connectors. PCs had parallel ports for printers and PS/2 ports for keyboards and mice. Macs used SCSI connections for hard drives and ADB connectors for keyboards and mice. Even their serial ports for modems and other peripherals had different shapes.