Description
This is a mobile phone that is:

1) As open-source as possible *while also being cheap*
2) Easy to get parts for if you want to assemble one
3) Easy to assemble and repair
4) Free from apps with privacy concerns
5) Easy to write apps for

https://hackaday.io/project/19035-zerophone-a-raspberry-pi-smartphone

#zerophone #gsm #raspberrypi