Like with Aqua, these fundamental changes in how things work will stick around for a long time. We may complain about how things look in the short term, but improvements in usability will be something that we value much more in the long term.
But more importantly, and more subtly, is the change of focus within the apps themselves. In the design of Twitterrific 5, we went through the process of figuring out what content was most important and then designing controls around that information. Previous designs focused on the control structure first and then filled it with content.
The more I keep using iOS 7, the more I think apps like Twitterrific 5 and Vesper already are great fits for its new interface principles. They are actual, commercial proof that focusing on content first doesn’t imply ending up with boring, overly simplistic apps.