LiFi (802.11bb) is now an IEEE networking standard

LiFi has its own IEEE standard now - 802.11bb and a company called PureLiFi is flogging a little module that allows devices to send and receive an optical signal at speeds at up to a gigabit between 20-300cm. Being light based, you need line of sight with no obstructions. Not sure what I'd use it for, but this article on Arstechnica quotes LiFi's lead developer saying it's good for "classrooms, medical, and industrial scenarios" and "ensures higher reliability and lower latency and jitter" than radios, particularly in congested areas. Cool, good luck to LiFi, will be interesting to see what people do with 802.11bb in various gadgets.