Nintendo DS connectivity
The Wii system supports wireless connectivity with the Nintendo DS. Shigeru Miyamoto said Nintendo was still working out when features using this connectivity would be available, but that it would be soon after the launch of the system, due to the popularity of the Nintendo DS. At Nintendo's corporate policy meeting in June 2006, Satoru Iwata explained that the DS uses its wireless connectivity to communicate with the console and that no further accessories are needed.
The connectivity allows the player to use functions like the Nintendo DS microphone and touchscreen as inputs for Wii games. The first example Nintendo has given of a game using Nintendo DS-Wii connectivity is that of Pokémon Battle Revolution. Players with either Pokémon Diamond or Pearl are able to play battles using their Nintendo DS as a controller. It has also been announced that the Nintendo DS is able to play game demos downloaded from the console, which they would receive from Nintendo, similar to a DS Download Station. The console is also able to expand Nintendo DS games.