That's not really that accurate. Here's what's killing android app development: fragmentation as well as secured selling point. Let's put it this way.. with Apple, if you design an app and get approved, Apple supports it universally on their platforms, they sell and manage your costs, etc.
With Google, their marketplace is messy, and you aren't assured that an app that is designed for X runs on Y. In fact, it's been fairly frequent that an app designed for say, 2.2 back when doesn't run right on Ice Cream Sandwich. And with Jelly Bean the next Android OS, fragmentation is more not less with more unique twists and tracts.
Android is the neat, cool, super geeky kid. Originally, a lot of people had compared it to Microsoft.. ie, the "good enough" and that it'd dominate the market. And android devices do cell well. But their application cohesiveness is TERRIBLE. For a developer, it's a hard target to hit and the reward structure sucks.
Meanwhile, Apple has the iTunes store locked down and profitable for vendors, and they've figured out how to push it. Even Microsoft's Windows Phone ventures - which lag behind those - makes complete sense for a developer who wants to make money, especially in comparison to Android.
It's not saying there isn't money to be made in Android, their definitely is. But for big development houses, it's hard to commit a ton of resources to android because you're going to spend a ton of time and money on "bug fixes" that boil down to "compatibility patches" as several have discovered. This is a significant added cost which can hinder development and definitely lower profitability.
