I'm running 4.0.1 on my iPhone 4. The first update obviously caused this theme to be incompatible, as you said it only worked on 4.1. Unfortunately version 1.2 is still not working on iOS 4.0.1, at least in my case. And I really hate the default bubbles now, so I would much appreciate your looking into this. Thank you very much! This work is very pleasing to me.