One of the more interesting new features allows you to request the gift of an app from another BlackBerry user. Of course, it is better to give than receive so the feaqture also allows you to make a gift to someone in the form of an app. And if its kosher with your wireless carrier, you can pay for the gift directly through your monthly wireless bill in addition to using PayPal or a credit card.
Request an app as a gift from a fellow BlackBerry user
Another addition is a ratings system that allows you to prevent your kids from installing certain apps that you deem too risque for them. The rating system is based on the CTIA's "Guidelines for App content classification and rating". The default rating is "Adult" which allows all apps to be purchased. Once the new AppWorld storefront has been launched, BlackBerry users will be able to change the rating by going to My Account > Content Controls" as seen below. The different rating classifications are Adult, Mature, Teen or General.
One last change to BlackBerry App World is that the storefront will now be accessible via Wi-Fi. You will now be able to browse apps, purchase and install a new app even when you do not have a cellular signal.