The Wii was a cross-divisional Nintendo effort; no single "designer" is credited. Key leadership drove the "Blue Ocean" strategy:
External Partners: ATI (ArtX → Hollywood GPU), IBM (Broadway CPU), Broadcom (WiFi/BT), STMicroelectronics (MEMS Accelerometer in Wiimote), MIT Media Lab (Early motion research influence).
The name "Wii" (pronounced "We") was chosen by Iwata/Miyamoto for inclusivity.