Hello Ben Heck team and congratulations on having the best show of this kind ever! I really like your formats and I hope to see more of them in the future.
I want to build a project in which I could have multiple RPi devices with a GPS module hooked to a delivery company. After some research I saw companies with LED boards for public transportation in Belgium or Germany use FM radio communication to send information for those boards mounted in bus stops. This made my mind boil on how convenient that would be .. to only send some coded signals on a public radio frequency and have modules that can receive that information.
I would love to see a project in which a RPi can listen to a FM frequency and display or do actions based on what it receives.
Here are the links I got my inspiration from:
http://www.windytan.com/2013/11/decoding-radio-controlled-bus-stop.html
http://hackaday.com/2013/11/25/sniffing-data-from-radio-controlled-bus-stop-displays/
I think this can prove to be a cheap and good alternative to WiFi or GSM modules in a RPi and I want to see how far you can go with this. I know you made a project in which you were communicating through bluetooth, but this might be able to let you achieve better results.
Thank you for giving us the chance to post ideas and keep up the good work!
Say hello from Romania to Ben, Felix, Alyson, Karen and all the great people in your team!