This is a problem with not only mGBA on the Wii, but also other Wii emulators.
I am trying to play a hacked Pokemon ROM, it plays fine except some sounds are missing. This happens with both mGBA, VBAGX, and Gambatte (through Retroarch). On mGBA for PC it works flawlessly. Is this solvable?
Changelog looks really nice
Any updates on the psp port?
There is no progress and never will be a finished PSP port, most likely.