Two things that BlackBerry needs to implement for BlackBerry World. Number one, an affiliate program for apps, games, ect. And number two, a coupon discount system for devs and consumers. Looks like it's now going to be just down to one, as new screenshots via N4BB show OS 10.1 with a coupon code redeem system in place!
The screenshot was acquired from inside a new BlackBerry 10 Dev Alpha C device that has been going out to participating developers as part of a program to get apps ready for the BlackBerry Q10 smartphone.