It's called USAPhotoMaps by Doug Cox. I downloaded most of the area I'm usually driving in so it'll have the data ready.
His site is:
http://jdmcox.com/
I also wrote a script to pull individual SSID data from Netstumbler logs and map all points on the map (and level) that the unit in question was picked up.
(I work for a wireless Internet company, so kind of something I threw together for my own testing purposes)
Info:
USAPhotoMaps downloads aerial photo and topo map data from Microsoft's free TerraServer Web site, saves it on your hard drive, and creates seamless maps. You can:
Scroll and zoom
See the latitude/longitude
Add waypoints, routes, and text
Jump to any waypoint or latitude/longitude in the U.S.A.
Transfer waypoints, tracks, and routes to and from most GPS receivers
See your GPS location
And much more.
Linear Mode
