I work with SPI devices a bit, and _some_ places have shifted from MISO/MOSI (Master in Slave out etc) to CIPO/COPI. Or PICO/POCI (Pico? Like the really cheap and popular RPi device?). MISO/MOSI is at least consistent, unambiguous, and is _literally a master/slave situation_. Unless the end game is to remove the words master and slave from the dictionary in case someone gets offended, this is stupid.