I don't think market share is the best metric for measuring iPhone success, or even necessarily one that Apple cares about (save for when it breaks in their fav

I don't think market share is the best metric for measuring iPhone success, or even necessarily one that Apple cares about (save for when it breaks in their favor). As with the Mac, they seem content to let their competitors fight over the high volume strata while staying in the upper tiers and banking the lion's share of the profits.