Speaking with Famitsu, Nintendo's Shigeru Miyamoto emphasized that the goal for Wii is to encourage a daily regimen of gaming. Nintendo aims to design "[hardware] that you'll want to turn on every day," Miyamoto told Famitsu. With that goal in mind, Miyamoto described Wii Sports as the console's flagship title. Of course, Miyamoto assures us that Nintendo will continue producing its staple franchises (e.g. Zelda), but the focus will turn toward developing software that promotes daily use.
Miyamoto also noted that the Wiimote has not been finalized. Nintendo is "still debating on the area of how many buttons to use."