Wii Speak(er phone)
At E3 today, Nintendo announced Wii Speak, a voice chat system for the Wii. Unsurprisingly, it will require yet another peripheral which sits atop the sensor bar.
From the comments:
Awesome! Now I can voice chat with 1454-7898-5462-4787 and 7894-8569-8457-1245 without a headset!
Come on, Nintendo. Give us the easy online play system we really want, not a speaker phone.