Yesterday's seemingly inane Wii update, which neglected to bump up the system menu version a single decimal value (it remains at 3.3 -- the firmware has upgraded to IOS51, though), now appears to have an actual purpose. Forget the Shop Channel optimization tweaking. The update's more direct mission seems to be to block new installations of fakesigned applications -- most notably, the Homebrew Channel and DVDX. But take note, if you've already got the Homebrew Channel or other unofficial apps up and running then apparently you won't notice the difference. Carry on.