I just stumbled over the iTunes page and got to know about the celebration Apple is preparing for.
Yes, Apple will soon cross one billion downloads of applications available across Apps store and then it would be celebrating the 1 billion apps download mark by giving away huge amount of gifts. There is a counter running on the iTunes page with the live number of total apps downloaded, a screenshot of which could be seen on the top of this post.
Another interesting fact to be noted down is that, Apple will gain the billion download landmark prior to the first anniversary of App store.
So, its really a good achievement for Apple and a time to celebrate for all Apple fans! 🙂