Nintendo scrambles all employees, All working in overdrive, Don't go home until fix is found!
I bet we see a system update very soon and not only 1 but a few after each other
(fix *hax2.5, maybe push updates for the future, like Wii-U (sleep mode is update in background without notify, cause it's in the toa), etc...
You can bet that as soon as the video was released explaining how this hack works, nintendo's been hard at work trying to work out how to patch it out.