How does it work? Effortlessly, or so they claim. You put the FreeLoader disc in your Wii, load it without doing anything special, it ostensibly deposits its payload, then you eject it and put in the game you want to play, "which loads and plays just like it would on its own region of Wii."
I wonder if Nintendo will release a new firmware to end this loophole, if that's even possible ...