I'm on my mobile, so I can't dig up the link (someone do the grunt work for me)... But the 3D abilities have sorta been known about for awhile on the 'Cube. There's a great article by Don on Electric Pickle that delves into the secrets and such of the official Nintendo GameCube service disc (used by service/repair centers). It touches on this a bit.
ah so is this why you sent me that text message?