Residential Wi-Fi spots Mapped

Slashdot is reporting an interesting article that claims AOL and Skyhook Wireless have mapped “the majority of residences in the U.S. and Canada” along with their wireless service (or lack there of). It is supposedly part of their “Near Me” service which allows AOL IM users to see people physically located near themselves.

I’m of multiple minds on this issue. One the one hand, it’s pretty cool to see the virtual linked to the physical. On the other hand, I don’t want people knowing about my personal WiFi. On the third hand, considering our state is going through some major address mapping issues, how the heck do we get that residential mapping data?