Some interesting stats here on iphone apps
90% of apps don't make profits for those who create them. Apple would not tell me how much money it makes from its App Store.
You must sell 1500 a day to get in top 100 list
54% of free apps have fewer than 1,000 users
225,000 apps shouting for attention
2 billion applications are trying to get the same people's attention as your app
I think we missed that train.....