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.
The apps which most successfully look like they belong on iOS 7 are those which have been completely re-thought, not just re-skinned. Tapbots is doing the right thing by taking their time to truly reconsider Tweetbot, along with their other apps. I’m very excited to see the results of this. (No, I haven’t been beta testing it.)