Ok well I don't know if the R4 comes with a spare case for the PCB, but I assume that it does.
My M3 Simply I kept in the dark grey case because I just got it and I have the old style Nintendo DS systems. White looks really good too, some people are using the white case with their DS lite systems to match
My M3 Simply I kept in the dark grey case because I just got it and I have the old style Nintendo DS systems. White looks really good too, some people are using the white case with their DS lite systems to match