What I am seeing here is a lot of people wanting features that can be summed up as a “peripheral mode” or “pass through mode”.
in addition replacing Bus Pirate as a UART/SPI/I2C usb adapter, JTAG adapter and a USB rubberduck, Flipper can potentially also replace hundreds of dollars of gear such as:
a “yardstick one” dongle ( rfcat compatible?)
a usb RFID dongle
a 1-wire usb dongle
bluetooth dongle (sniffing ??)