It would be interesting to know if this will entail re-buying Tweetbot for iPhone (and, eventually Tweetbot for iPad).
The focus on how much time it took to do a total rewrite is usually a setup for that type of news, but on the other hand, Tweetbot 2 for iPhone was a free upgrade[1].
I'm excited. Tweetbot is one of my favorite apps (in fact it's got a prized seat on my dock). I still use it with iOS 7 because I'm used to it. There are tons of other Twitter clients that feel more "iOS 7"-ish, but Tweetbot just has a level of usability that I love. Plus, the synced browsing with the Mac app is really wonderful.
Keep doing awesome work guys. Looking forward to the release (paid or not).
The focus on how much time it took to do a total rewrite is usually a setup for that type of news, but on the other hand, Tweetbot 2 for iPhone was a free upgrade[1].
[1]: http://tapbots.com/blog/tweetbot/tweetbot-2-0-for-iphone