Developers for Apple's platforms have long had to walk a knife's edge, balancing their desire to implement powerful features with their need to ensure that those ideas fall within Apple's prescribed bounds.Unfortunately, those bounds often seem to be moving targets. To take one example, Smile Software recently announced that Apple had deemed features of Smile's popular TextExpander beyond the pale and that, as a result, Smile would have to revise the app.Apple's role as gatekeeper has drawn ardent praise and provoked sharp criticism. Though iOS had become an incredibly successful platform, where hundred of millions of users gobble up app after app at a pace unmatched by the OS's rivals, problems have arisen along the way.And as iOS continues to mature, Apple's tight grip onto its mobile ecosystem is beginning to make evolution and growth hard for developers who have contributed significant
