Marco Arment:
Apple has set fire to iOS. Everything’s in flux. Those with the least to lose have the most to gain, because this fall, hundreds of millions of people will start demanding apps for a platform with thousands of old, stale players and not many new, nimble alternatives. If you want to enter a category that’s crowded on iOS 6, and you’re one of the few that exclusively targets iOS 7, your app can look better, work better, and be faster and cheaper to develop than most competing apps.
This big of an opportunity doesn’t come often — we’re lucky to see one every 3–5 years. Anyone can march right into an established category with a huge advantage if they have the audacity to be exclusively modern.
I’m working on a few app ideas. Whatever I decide, rest assured that it will be designed exclusively for iOS 7. For good or bad, there is no looking back.