- It doesn't include other devices running iOS (as a developer I look at those too, especially if my app doesn't require Internet).
- It doesn't consider that a big % of Android phones run apps horribly if not at all. Also most of this phone we'll never be easily upgradable to a newer OS version (I don't care if you can do it, I'm talking about for "normal" people), because the carriers and manufactures prefer pushing the new phones that come out every other week.