Yippee -- I can finally get the Google Maps pointer to my home address positioned on my house, instead of down the street where it has always pointed. This thanks to the new Edit feature. Google Maps becomes Wikipedia, with user-edited location pointers. But is this good? Wikipedia is (potentially) a description of all human knowledge, so is naturally a venture for the group mind. But geography? Google Maps is (potentially) a description of all human address knowledge. Will I be unable to find my midtown hotel because a disgruntled guest moved the address pointer into Queens?