I came across this interesting article where they tested the effect of microwave ovens on 802.11 wireless connections. While I figured that it would degrade the signal to some extent, I was surpised by how significant an effect it had and over how far a distance it interfered with wireless performance. The website also has a test of 2.4GHz cordless phones as well.
Enjoy:
http://www.wi-fiplanet.com/tutorials...le.php/3116531
