A perfect example can be seen live on iTunes right now! The "dice" category has a developer resubmitting the same game everyday. He simply changes the colour of the die and presto he has a new game. White the first time, green the second time and red today. What colour will it be tomorrow? He has several other games in the dice category and he is displaying the same behaviour as well with these titles as well. Currently he submitted 6 times the same games on the first page of dice alone. Visibility is so tough right now and the app store is big enough right now that iTunes should take a closer look at not approving this type of behaviour.