I'm not sure this Asymco piece makes a point I find relevant. It sounds like there's a lot of money going through both Hollywood and the App Store. The amount of money accessible to any new entrant is unknowable and probably pretty small on average. It sure is a lot of detailed data but comparing it to Hollywood seems as irrelevant as comparing what kind of cars bloggers and proctologists drive.
If this is the conclusion, I also have to disagree:
The curious thing is that even though the medium of apps is swamping other forms of entertainment in all measurable ways, comprehension of the phenomenon is lagging.
Whenever I mention to someone that I have an app in the AppStore, they generally think that's a done deal for making money. In my experience there is absolutely a perception that each app developer makes a lot of money off of their products. Which, I suppose, is similar to people that think working in Hollywood makes you rich. It's a bad comparison from every angle I look.