I'm sure some have heard or seen Skyhook
The jist of the company is a commercial business using geo-location of wifi networks to trake wifi enabled devices. Such as when a laptop is stolen the laptop will phone home with network information it is on. Using their database they can give a reasonable location of the laptop or device.
I wonder how they are getting their information. They take submissions from the public. However it would be easy for them to lift the information from wigle or a user lift the information and foward it as their own.
Maybe I'm paranoid but if one, wigle doesn't see any money from it I'd be pissed or two, I don't see any compinsation for my data gathered (but that's against the wigle TOS).