discounted apps and start being reflective -- and that's when Distimo's 2011 'App Year in Review' report can serve as a nice digestive. Alongside some predictable trends, such as an impressive 400 percent surge in available Windows Phone apps, it also reveals a few interesting stats about the market leader. iPhone app downloads in the US "have been declining for nearly the entire year," it says, although there was big spike following the launch of the 4S. Regardless of volume, however, top-grossing iPhone apps still made four times as much money as the Android Market's premium performers. By the same measure, even iPad apps on their own generated twice as many dollars. Is this a tale of quality over quantity, or are Android apps simply better value? We'll decide when we're less queasy, and in the meantime there's a fuller summary of the report at the source link -- though you'll have to register to view it.