A lot of developers were complaining about the review policy of the App Store, and today Apple has finally made a big improvement. Since today you can only review an App when you’ve actually purchased it. It’s no longer possible to go to an App and just review it even though you haven’t used it. Developers were seeing negative reviews of people who hadn’t even played an App. TUAW has more info on the new review policy:
The frequent result is as you might expect: 100 reviews kvetching about price by people who never even purchased the application. That isn’t fair to developers, and it isn’t fair to potential buyers.