If no one raises objections, I would like to start on refactor / cleanup nautilus code. This includes: renaming / recategorizing solve code critics shown in Critics Browser split classes (AbstractNautilusUI has 427 methods 24 instvars ) stronger separation between the browser model, browser state and browser UI. review event handling and UI updating (sometimes there is a difference between what the UI shows as selected and the selection the model(s) holds maybe: create one package pane widget for package and groups (therefore move all that package vs groups handling from nautilus ui to that widget) merge Nautilus and PackageTreeNautilus (I don't consider all of Nautilus bad code, it has well designed parts, it just has grown meanwhile...) How to update the code? Working with slices makes it easier to find changes that introduces new bugs. Otherwise it takes time to do it in such small steps and I don't know if those changes are reviewed at all. So, I would try to group the changes. 1. code critics 2. renameing/ simple refactoring 3. .... nicolai