Via @crediar
As SifJar saysThe WiiMode keys are ours! http://crediar.no-ip.com/OTPKeysWiiMode.jpg
To the people on the first page wondering what this actually means; the keys mean practically nothing. They're the ones that have been well known for years from the Wii. The ones that are different are the console specific ones.
The key thing here is the fact that a piece of software running on the WiiU was able to access them. IOS by default won't let code access these keys. You have to bypass the security. In other words, this is evidence of an IOS exploit from crediar. Which means that, using that exploit, it should be possible to install stuff (e.g. HBC etc.). I'd say it's more of a proof of concept for the IOS exploit, rather than "look, I got the keys".