Boo - 19th for me as well.
I'd still like the adapter at some point, but I have plans to have friends over for Smash before the 19th.
Wonder if i'd get away with buying a copy of the game from say GAME, playing as normal until my Amazon order arrives, then taking the sealed game from inside that box and returning it to GAME unopened.
They may know something is up, you get the giant USK logo on front of the cover for the cube adapter pack.