My first thoughts are 'this is great'. Google claims "don't be evil" so it better live up to it. Money corrupts a corporation and since they have gone public that has been called into question. I have an android phone and i happily let Google track me, i let them keep my email, my photos, my digital life, the least they can do is put out something like this. This map is not for me though, its for the average Googler who doesn't fully understand how Google collects and keeps and uses personal data.