“The Mac App Store Isn’t For Today’s Mac Developers”

But a huge new market is about to open next door. And yes, it’ll probably be dominated by Angry Birds and other inexpensive, often trivial apps. When this happens, a lot of traditional Mac developers are going to look down on it. But those with a bit of free time to develop their own inexpensive, often trivial apps might have a different viewpoint entirely when they see their sales numbers.

Marco Arment nails it.