According to a new Strategy Analytics ( report, “App Developer Attitudes and Behaviors,” Apple continues to draw primary attention from app developers, while the Android is holding steady, Windows Phone is gaining momentum, and BlackBerry is struggling.

The growth of the iPad, Android, and Windows Phone is clearly coming at the expense of iPhone, BlackBerry, Java and other platforms, according to Josh Martin, director of Apps Research at Strategy Analytics.

“The app market is already maturing,” he says. “Developers are tired of a few making the lion’s share of revenue. Thus, we see strong interest in fresh, emerging platforms and new business models, such as virtual goods and in-app advertising over the next year. The platform that best delivers revenue from multiple streams stands the best chance of success in the next eighteen months. For this reason, Strategy Analytics predicts that Apple will introduce carrier billing in emerging markets next year, which will extend the lead it has built in mature regions.”