I believe Shiggy's '05 quote is referencing the holographic projector. I'm not sure that anyone outside of Ninty R&D has actually seen such an accessory or can confirm its existence, but this rumor has been so pervasive through the industry for so many years that its generally acknowledged Nintendo probably does have such a device and are sitting on it until the market is right. Atari is confirmed to also hold patents on similar 3D projection technology (leading some to conclude a year ago that Atari's Wii Jenga game would include a tabletop projector -- something which would've made a lot more sense than playing Jenga on a flat TV).
Ubi even gave a tip of the cap to the rumor/non-rumor with their nifty Pinocchio mock-up at the Ubidays conference. FWIW, I don't believe the mock-up being a Pinocchio-like head is an accident either ... I think it was Ubi's jab at Ninty for either hinting to such a device which probably does not really exist, or repeatedly hinting at Wii's "last secret" but still not delivering it.
http://www.youtube.com/watch?v=E8RS0oH51UU
