How about this?
http://www.bitcorruption.com/alerus1.jpg
This is a picture of an AP I set up in the middle of a parking lot. I'm working on a program to make those wireless visualization maps. It does not plot AP's like Wigle, rather it uses inverse distance weighted interpolation to generate a coverage map. Might be useful for areas with multiple AP's to find deadzones. Anyway, it will hopefully be done soon and I can post it to the forums.
