"Blogger Kiyoshi Saruwatari claims that Nintendo's upcoming Wii
console runs on the open source Linux operating system. According
to Saruwatari, who claims to be a Nintendo insider, the company
reduced development costs by leveraging open source software and
incorporating a Linux kernel into the Wii software platform. A wide
variety of additional features like web browsing, video playback,
file management, and emulation all run on Nintendo's custom Linux
operating system, which uses a proprietary interface. Unlike the
other specialized software components, the actual games will not
run under the Linux platform, and can be played without booting
Linux if the user holds down the 'A' button while the Wii is
starting up..."