The Wii is Nintendo's fifth home console, the direct successor to the Nintendo GameCube, and able to play all official GameCube games. Nintendo first spoke of the console at the 2004 E3 press conference and later unveiled the system at the 2005 E3. Satoru Iwata revealed a prototype of the controller at the September 2005 Tokyo Game Show. At E3 2006, the console won the first of several awards. By December 8th 2006, it had completed its launch in four key markets.