Ill summarize it but I highly recommend heading over to this link and checking it out in detail.
- Split Top 25 Themes and Top 25 Apps
- BlackBerry App World Barcode Scanning for easily grabbing apps by just taking a picture
- More Billing Options
- Credit cards – varies by region
- Carrier billing – just pay for an app on your wireless bill
- BlackBerry ID – a new device independent user identification for downloading apps and easily switching devices