Ciao Arturo!
I recently made an arduino library to support the newer gopro cameras and to use other boards instead of only the WiFi. I took the idea from your library (I also wrote it in the readme) and updated the license to the GPL3
https://github.com/aster94/GoProControl
Since I changed the name and made a lot of changes I didn't fork this repo but i thought to pass here and say a thank you for the first input to write it!
π