The engineers of the Wii Hombrew Channel, the launch application used for running unsigned software from the original Nintendo Wii's dashboard, have announced a new version
of the HackMii crack that now also works on the Wii U (via Eurogamer
For now, it only works on the Wii mode within the Wii U, not in full Wii U mode. In essence, the HBC runs on Wii U just as it does on Wii.
dhewg suggested the Wii hacker community may be able to find their way into the full Wii U mode, and thus get HBC running there, but it seems they are nowhere near that - yet.
“We can all try to hack the Wii U together from inside Wii mode,” he said.
Nintendo won't be happy with this latest development. It maintains that the installation of the Homebrew Channel voids warranty as it is considered unauthorised software.
That unsigned code is already running on the Wii U at all is quite significant.
Several prominent Wii U hackers have also already reportedly been hinting at more a complete Wii U security exploit, but any related cracks or software are yet to be publicly released.