Flutterby™! : Health effects of WiFi

I met a woman recently who was part of the "WiFi makes me feel sick" crowd, so for future reference Guardian: Wi-Fi: are there any health risks? is a good rundown, including the WHO rundown on exposure to EMF:

In the area of biological effects and medical applications of non-ionizing radiation approximately 25,000 articles have been published over the past 30 years. Despite the feeling of some people that more research needs to be done, scientific knowledge in this area is now more extensive than for most chemicals. Based on a recent in-depth review of the scientific literature, the WHO concluded that current evidence does not confirm the existence of any health consequences from exposure to low level electromagnetic fields. However, some gaps in knowledge about biological effects exist and need further research.