To those worried about Wifi and other forms of radiation:
Wifi is a form of radio that operates in the 2.4 GHz or 5GHz frequency block. Most wireless units operate at under or around 1 watt.
When you pass near an AM broadcast station you're being exposed to around 50,000 watts.
If radio waves
are dangerous (and they've never been proven to be by any reputable study), then wifi is 50,000 times safer than conventional radio.
If you're worried about radiation, read this:
http://xkcd.com/radiation/
I almost guarantee you'll be a lot less worried when you're done.
(Either that or you'll stop sleeping next to people to keep from getting radiated by them.)