You know they ARE watching this. They have been super silent. With that being said.... keep trowing out the rumors and maybe in the future they will become features.
Expansion Module Idea:
Power management module (including solar controller)
SDR interface (bandwidth would need to be SUPER limited But it might be fun to have it be able to transmit. IE garage door opening signal or broadcast bluetooth)
Relay board (mount the PI to a toycar and have a roving honeypot)
Camera board (listen to the WAVES and watch the skys)
Just ideas!