Voice-to-text recognition for the Wii?

A "trusted person" from the IGN Insider forums has hinted that the Wii will not only have voice communication through a wireless headset, like the Xbox, it will also make use of a proprietary Nintendo feature called "voice-to-text communication." This would read the tone, pitch and volume of a user's words and display them on another player's end in appropriate colours and font sizes. Shouting "I win," for example, might display the words in large red text. This same technology would permit easy censorship of voice chat.