Ceric's questions are a bit more advanced. If they can be explained easily, then cool. But careful with the tech terms.

You could add that Wii is pronounced as "we" in the first question. I was watching a tv show last week, and the host didn't know. He just said the letters "w-i-i."
Who can play the Wii?/Can girls play with Wii too?
What kinds of games are there?
How many people can play at once?
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Some of Ceric's Q's, simplified:
What is a sensor bar?
What kinds of TVs can Wii be connected to?
(Any standard TV or any new widescreen HDTV)
How do you connect the Wii to a TV?
(It connects like a DVD player, and all standards TV inputs are supported.)
How do you save your game status?
(internal memory, plus SD memory cards -- the same cards found in most digital cameras.)