Open-source software
OpenEZX was a project active from 2004 to 2008, which gathered information about the Linux based Motorola EZX phone platform.
It tried to provide a 100% free software stack for those phones, especially a way to avoid any proprietary filesystem and/or device drivers. It also aimed to provide a current (2.6.x) kernel with all required hardware support for the EZX phones.
Supported phones included:
There is an archive of the historic OpenEZX software git repositories on.