If you were waiting for the Homebrew Channel to make an appearance on Nintendo's latest console before transitioning from the Wii, you're now a step closer. HackMii has announced the availability of HBC for the Wii U's Wii mode.
Unfortunately, there's still no Homebrew Channel for the Wii U itself and it's hard to say when it will make an appearance, if ever. That said, Nintendo's consoles have never been on the cutting-edge of exploit foiling, but that might have changed with the Wii U. It's wait and see, as usual.
A post about the new installer explains why HBC for the Wii U's compatibility mode was not made available sooner:
Despite all of the anti-reverse-engineering tricks we put into our last instalment of the HackMii Installer, Nintendo managed to find the IOS exploit we used to install The Homebrew Channel and fix it sometime within the last two years. There never was a Wii system update for this, the fixed IOS versions can only be found on a Wii U.
If you're feeling brave, you can download the installer from BootMii. Personally, I'd wait another version or two and see how other users are finding it.
HBC release for a new Wii U [HackMii]
Image: Wikipedia / Marcan, licensed under Creative Commons 3.0