The iTunes App Store is huge. More than 300,000 apps huge. I’ve watched this monster start from nothing and turn into a billion-dollar industry in only a few short years. We’ve been approaching this point for some time now, but it’s more apparent than ever that app exposure is of critical importance. A healthy majority of iOS app users discover new applications directly from their device as opposed to using iTunes. If you look specifically at the iPhone, the amount of real estate for discovery is only available to a very small percentage of the total apps.