Google Maps added a new feature today that makes it act more like a wiki in the United States, Australia and New Zealand. Starting today, you are now able to move the location of any marker if it's not in the right spot. This feature has good intentions, but like the short lived "click-to-call" feature, there may be room to game the system.
If the feature sticks around for a while, Google should start a contest or give people points for updating markers -- make it a game, almost like the Image Labeler. If enough people start making accurate adjustments to the system, the data they collect could make Google Maps the most accurate mapping service available.
Unfortunately, the way the system works now, it's impossible to tweak the location of a business unless you are confirmed as the actual business owner. Average users only have permission to edit explicit addresses. That means if you change the location of the marker for pizza hut's address, the next time you search for pizza, the updates you made aren't seen anywhere.
I think this has potential if they can get people to "check their address", but what do you think? Will this feature be widely adopted, or ultimately fail like click-to-call?