When USB 1.0 launched, one of the ports it aimed to replace were PS/2 ports. Mice and keyboard had mechanically identical PS/2 plugs but would not work if plugged into the wrong one.

A recent article in The Economist argues that a new standard for USB plugs, out next year, could help promote a shift to using DC power in offices and homes, which could reduce energy consumption ...

Google Wifi is the first home device to use it. Most similar devices use either DC plugs or microUSB (if you're lucky). It would be nice to see more device makers adopt Type-C power.