I've lost track of the back-and-forth rounds, but the new Wii System Menu 4.3 is once again going after homebrew pretty specifically.|
From Nintendo's rather lame description:
Unauthorized ModificationsIt was as if millions of Wii owners suddenly screamed out, "DO NOT WANT"...
Because unauthorized channels or firmware may impair game play or the Wii console, updating to Wii Menu version 4.3 will check for and automatically remove such unauthorized files. In addition, there are some behind the scenes enhancements that do not affect any prominently-used features or menus but will improve system performance.