Apple Updates the App Store to Halt "Gaming"

Over the weekend, Apple made some changes to the App Store to halt "gaming" of the system by some. In particular, one change made was that in order to review an application, you have to own it (above). Personally, I'd say: it took them this long to figure out this might be a problem? How long has the App Store been open, anyway?

Additionally, previously all applications were categorized based on their "release date." But what the App Store actually did was recognize the last "update date" as the "release date." Thus if you had actually released an app on August 1st, then updated it on August 15th, the App Store would note it as "new" on August 15th, putting it at the top of both iPhone and iTunes listings for a category.

Since developers noted a jump when this happened, some got into the habit of releasing dummy updates to push themselves up to the top of the listings.

Once again, it took them how long to figure this was a problem and fix this?