• MicroFlo flow-based programming environment port
  

https://github.com/jonnor/f1rmware/tree/microflo2 (@jonnor)

• Wifi jammer with hackrf tools (@verovaleros, @eldracote).
• Basic embedded Morse application able to send and receive messages over RF. Enjoy! (by @virtualabs)
  

https://github.com/virtualabs/f1rmware/tree/master/telegraf

• standalone wide FM radio - listen to your rad1o! Also: standalone transmitting! Plug in a headset and have a go!
  

https://github.com/rad1o/f1rmware/pull/124 (in rfapp, by @hilse)

• Control sextoys (wireless massage eggs) with your rad1o!
  

https://github.com/ikarus23/wireless_massage_egg/tree/master/gnuradio (will be merged soon?!)
https://events.ccc.de/camp/2015/wiki/Projects:Teledildonics

• MOD file audio player (by @hilse).
  

https://github.com/rad1o/f1rmware/pull/53 (now part of upstream f1rmware)
Check out this list for suitable (<32kByte!) MOD files:
http://modarchive.org/index.php?request=view_member_favourites&query=88778

• Color plasma nick animation (by @hilse).
  

https://github.com/rad1o/f1rmware/pull/30 (now part of upstream f1rmware)

• Nick animation with joystick-driven LED colors (by @cannonerd and @bergie)
  

https://github.com/rad1o/f1rmware/pull/85

• d1pole . Your first simple to build Antenna for the rad1o (by @b4um_).
  

https://www.dk0tu.de/users/DB4UM/c3d1pole/

• silicone sleeve, mold-your-own (by @hilse)
  

http://imgur.com/wFT2nne