All credit for the firmware image to @Normmatt who's awesome. This is to demonstrate that the NTR card bootrom hack (ntrboothax? magnethax?) works on real hardware.
It will be released once more types of cards are supported + installers work well -- don't want to get everyone to buy a single expensive type of flashcart if it can be made to work on lots of them.
For more details: see my presentation on bootrom hax