I think the point isn't to make your own apps, it's to become a freelance app-maker. After all, in a gold rush sell shovels. There's tons of room right now for mobile developers - the influx isn't nearly as big as you would think, and most of the new entrants are woefully incompetent.

If you're a legitimately good mobile dev (or can become one), there is lots of room for you in the scene right now, making plenty of money.