InuYasha said:I often wondered this myself,i'm sure it's possible but I doubt anyone would put any serious work into trying it......
Narin said:Its not possible due to hardware differences, The CycloDS as different hardware and has internal memory which it heavily uses for all of its in game features such as in game menus and such while the R4 doesn't have this. So even if someone did get the CycloDS firmware to work on the DS, most of the features would need to be disabled.