I love this and follow the Twitter bot.

One question: That seems like a really permissive license for a $9.99 app (I realize GitHub's just got the core). Are you worried about someone cloning it?

One request: I don't know if it's possible, but in iOS Tweetbot the bot's pictures show the unmodified picture first (requiring a swipe to see the bot's work). It feels to me like it would be better to show the primitive version first, but I realize this may not be feasible or universally preferred.