Google Maps hacks!

Someone finally did a WiGLE and Google maps mashup!

http://wigle.rustyredwagon.com/

The same guy did this greasemonkey script for googlemaps to enable even more overlays (Topo, Terra, Urban) the Urban one is awesome and has a much better zoom than any of the others.
http://www.dasnet.org/node/101

Theres even more here:

http://www.gnik.com/wiki/GoogleMaps