* Customizable application drawer * Customizable drag & drop action buttons * Unveil the Dockbar flicking-up the app-drawer button and drop shortcuts/folders! * Themes e.g https://f-droid.org/packages/faenza.adw.theme
This was the default Home app in CM7.2- but it still works on Android 4+. However, source code isn't published for the new versions (v1.3.3.7), which are specifically designed for later Android versions.