Certainly there are breakthrough/paradigm-busting/watershed moments every once in a while when a new technology or gadget truly changes the playing field, but by and large, the consumer electronics game is in the end a business and so slow, incremental product updates are, and will always be, the constant. It's the oldest game in the book: like every non-consumable product, consumer electronics are designed with obsolescence in mind. It's just "good" business—perfect, long-lasting products don't breed repeat customers. In general, corporations are in the business of making money for as long as possible, not wish-fulfillment. The iPhone, and Apple, are no different.