Mark Jardine writing on the Tapbots weblog:
Seven months ago, we started working on a big update for Calcbot. We were hoping to release it sometime in the summer. Two months in, Apple announced iOS7 at WWDC. We knew this was a huge change. It would make every single one of our apps look dated so we had to make sure our flagship app was ready for it. All of the design work that went into the Calcbot update was rendered obsolete in one keynote and so we focused our energy on updating Tweetbot for iPhone. Playing with the beta of iOS7 over the next few weeks brought us to the realization that this would not just be a “re-skin”. We really had to just start over with the new foundation and concepts of iOS7.
I’m happy that they decided to take the time and work on a real update to Tweetbot, rather than just do a quick iOS 7 re-skin. There’s a few apps that I use whose developer simply reskinned the app and they don’t feel as good as they used to.