A group of guys over in GameSpot forums have pieced together lots of hints and believe they now know what the big secret that is to be unvealed at E3 will be.
The Wii will include two Wiimotes in the retail packaging.
Posted by Sphynxa:
"I was thinking about how such games as 3D-fighting, as well as dual-wielding in FPS games would work on the Wii. There are talks about the accelometer in the 'chuck, however apparently this will only allow detection of how hard/soft you jerk the physical object in your hand; as in it does not detect position or angle (like the Wiimote).
In games such as 3D fighting, it would be great for a single player to be able to use two Wiimotes at the same time, for independant right-hand/left-hand moves. In FPS's, while dual-wielding, each Wiimote would control a single gun.
However, then the problem arrises... how would Developers integrate this apparent necessary feature when a major percentage of Wii owners would only have the single Wiimote? We all know Nintedo is putting large emphasis on not just playing your games alone, but with family and friends (think of all of those great NES games that we can download through the Virtual Console that's half the fun are to have two players, ex. Contra). I wouldn't put it past Nintendo to include two Wiimotes in the retail Wii package."
Such speculation was then followed by two very interesting points:
A poster by the name of "waloacme" goes on to say that Nintendo did say that the two i's in "Wii represented" (two) controllers. Possibly hinting at the fact that two will indeed be included in retail packaging.
And then the big hint. Is it possible that Nintendo's big surprise has already been revealed, yet forgotten? A poster by the name of R3B311I0N believes so,
"I think they will. If you go back and look at the original revolution controller teaser, there was a guy playing a drum simulator game with two controllers, so the idea is there, hopefully Nintendo will follow through"
This is likely the big surprise folks. Imagine independently controlling your right hand/feet attacks in fighting/boxing games with one remote, while controlling your left hand/feet independently with another? Or dual-wielding lightsabers, guns and knives? Controlling Zelda's sword with one hand, and his shield in another? Or a goalie's stick, and his glove?
The gameplay possibilities are endless, and very exciting.
src: GameSpot Forums