Well first yes the control has touch screen, it's 6 inches and can be used as a portable device. Also includes a second battery:
"Wii" successor, the portable game controller
Nintendo is also equipped with touch screen camera functions 2011/6/4 2:09 Electronic version of the Nihon Keizai Shimbu Nintendo has also released a stationary game machines in mid-2012 "Wii" on the successor, to adopt the new touch panel controller. In addition to the games for a tablet device, such as operations, so that as a handheld game play. 06 Wii was released in the round of boom. Regain lost ground by introducing the successor of increased convenience. The new controller is equipped with a touch of the screen size of about 6 inches. The controller also incorporates a secondary battery ... |
http://www.nikkei.com/news/headline/article/g=96958A9C93819696E2E1E2EB988DE2E1E2E4E0E2E3E38698E2E2E2E2?n_cid=TW001