suloku has released Open Sram Language Modifier v4
This is an application to toggle sram settings such as the mono/stereo setting and the language used by gamecube games and the system IPL. The goal of this app is to make PAL gamecube games run on a NTSC gamecube/wii with the desired language, because all PAL games will play in english on a NSTC environment.
This is a clone of emu_kidid's sram language modifier 1.1 and it has the same features.
I made this in the hope of it working on the wii, using yagd and libogc functions.