From what I can tell, the RISC-V processor handles all of the phone functionality in a way that's almost entirely decoupled from the app-module/smartphone featu

From what I can tell, the RISC-V processor handles all of the phone functionality in a way that's almost entirely decoupled from the app-module/smartphone features. The phone part has its own firmware and drives the screen separately from the app-module. They added a green indicator light to show when the RISC-V "core" is using the screen vs when the app-module is. The graphics processor is probably just for when the RISC-V core takes over the screen, as well.