Joytech, a world wide manufacturer of video game peripherals, is planning on launching Wii game controller accessories for later this year.
From the looks of the photos, it appears that the third party controller add-ons will allow you to either add your controller to the accessory, or add the accessory to your controller to further enhance the interaction in your game. The new Wii game console includes a new style of wireless controller that is motion sensitive to allow the user to perform specific actions with the remote that simulate the actions on the game. These accessories shaped as items such as a racket, golf club or steering wheel allow a more realistic feel for the gamer as they simulate the actions.
There are also plans for a docking station to be available for the wireless Wii remotes to keep them organized and recharged at all times. No price has been listed for these items, but they are expected to be released before years end.