It would be interesting if we could somehow plug external RFID/NFC antennas to the device. This is helpful in red team engagement where you have to “bump into someone” to get a RFID card clones.
I was thinking that maybe the GPIO ports could be used for that, but I’m not entirely sure.
Flipper Zero won’t have any external antenna connectors, but yeah, you could attach another reader to GPIO. Though this would require to recompile the firmware to use another pins to switch from internal reader.