Peripherals DO sell hardware....  What would be going on with the Wii if it had a Gamecube controller?????

It's funny to read people that call others clueless, especially when they are clueless themselves, in the very field they think they are a master of.
I see countless and countless people thinking the wiimote is just a remote that you can put on any console like that, or that an add-on to a console can do everything the wiimote does.
Whenever I see a "gamer" say Sony or MS could just plug a wiimote like into their console, I immediately know he is pretty clueless about technology.
Making a wiimote like is just impossible for the Wii rivals, and this peripheral just have no chance at it.
The amount of technology involved is just too much to handle : Bluetooth controls and synchronisation, sensor bar, all the motion controls that have to be integrated in the console's OS, Mii storage, speaker/speech recognition(?), size/weight/design, and expansion port.
It's so well done that most people don't even see all this technology is packed in the wiimote: they're are clueless.

Let In2games release their nonsense, crash and burn.
These people should read the Blue Ocean strategy, so they realize they are doing several of the mistakes described in the book, before it's too late for them.
But it's funny anyway. I'd like them to release it, just to see all the anti-Wii people turn their vest on "waggle": great show confirmed.

 I said "third party controllers."

That's different from "peripherals."

A peripheral is a mouse for your computer, or a remote for your TV, or a Wii remote for your Wii.  Those are official and basically part of the system.

WTF is it, looks like a mouse.

Yeah...that's another thing...this motion sensing thing looks like it came straight from the 80s...

Heres my conclusion:

If you want motion control with tons of great motion control games, you buy the Wii for $250.

If you want a 3rd party motion control with only a few games, you buy a PS3 or 360 for much more, and then you buy a peripheral for $50.

Does anyone remember the Super Scope for the SNES? What were there, like two games total released for it?

yeah...but then again...the Super Scope did look bad-ass.

I still have a super scope :) That game was pretty decent though. It was very different for its time. It was a First person shooter back before they could even be made for a console. Although I can see why it flunked out. Gaming peripherals just don't last, even if they are cool.

I saw a clip on G4's Cinematech last night (ep aired within the last two weeks) of a Mad Catz "Motion Capture Glove" for the PS2 that was marketed with a nice-looking golf game. It appeared to be limited to that application, and it worked by tracking the hand motion instead of using a controller Wii-style (and much more cumbersome, it appeared that you had to put the gloves on and they were wired into the PS2!) But not a completely wrongheaded try at doing something along these lines.

Does anyone know if this thing actually came to market?

I think it will sale with the three games that are made for it. Like many others have said this will be like DDR pads and the Guitar while they are cool and fun to pay it doesn't go very far (as far as selling systems). The PS3 and the 360 don't need this so delevopers are not going to put millions behind a game for this on the 360/PS3. Nintendo has nothing but motion controls so you will always see much more elaborate games using it on the Wii, plus you have the Nintendo brand name and all this recent news in the media vs IN2games.