If you'd just put down Angry Birds Space for a moment, maybe we could tell you that mobile apps are kind of a big deal. How big of a deal? How's about 45.6 billion downloads just this year -- that's a serious amount of birds lost in space! All of those downloads weren't just Angry Birds venturing into the final frontier, of course. Gartner, Inc's latest mobile report doesn't actually break down how much of that enormous number pertains to Rovio's hit franchise, but it does note that "free apps will account for nearly 90 percent of total mobile app store downloads in 2012." That means of
