Besides, 6 weeks of work might be a bit much for an average app. For your first app, sure. For a high-quality graphical app, sure. But not for the average app. So let’s say that developing an average app costs not $30,000 but $20,000.

So after significant downsizing we arrive at a total iPhone app store value of 20,000 x 75,000 = $1,5 billion.

Now the total revenue of the iPhone app store in 2009 is $780 million. 30% of this goes to Apple, so the worldwide app owners have earned $550 million, or slightly above one third of what they’ve invested.

Does that point to an economically viable app store ecosystem?

App Store is a loser, fiscally. Who didn’t know that?