Apple has recently changed the way customers can review things inside the App Store. The new system can only be used by those who purchase items themselves…
Apple has decided that giving the people the ability to complain on an app that they have not bought or used is unnecessary. There had been people who were commenting negatively on apps when their complaint had absolutely nothing to do with the app or the iPhone in general. There were random flames or invalid statements to bring the app or the developer down. Well those days are over.
To submit a review on an app you have to log in with your Apple Account and the store then validates weather or not you ever bought the app. If you have purchased it then you are granted access to write a review, if you have not purchased it then it pops up the little window you see above.
Very good idea Apple, get the flamers off developers backs so they can continue to make more excellent apps!