Do we know at this point if the firmware will be open sourced ? It wasn't with the GCW Zero if I remember correctly. It would be a real issue to go with closed source when most other recent Ingenic devices have gone the open source way...
This is very wrong, the GCW0 was open sourced, down to the bootloader.
The RG-350 will use the exact same firmware (rootfs) and bootloader as the GCW0.
The only difference is a different kernel to support the right analog stick and the IPS screen.
(Said kernel is open sourced, link is at page 2 or something)
Will we be able to use this firmware on GCW Zero?
It is 100% identical to the GCW0 firmware. (i do believe they will remove the Wifi configuration tool though since the RG-350 doesn't have Wifi unlike the GCW0)