Google street view for finding potential squats in philly

So in google maps, if you go to Philly there's a thing called a street view. They practically have the whole city mapped out. Just go through the streets and find the vacants. There's tons so you can even pick one based on location(near other vacants, good dumpsters, whatever). Anyone used this method yet?

for instance http://maps.google.com/maps?f=q&hl=...1,471.90418643727173,0.5,0,-4.939743374141021