One of the major differences between Kupfer and GNOME Do is that Kupfer comes with a lot more plugins and is actively developed as opposed to GNOME Do (unfortunately). Also, Kupfer is not developed in MONO (unlike GNOME Do), but in Python.Read more »
After a few months of development, AWN (Avant Window Navigator) 0.4 is available for beta testing.
In case you don't know, Avant Window Navigator (Awn) is a dock-like bar which sits at the bottom of the screen (or at least it used to, read on!). It has support for launchers, task lists, and third party applets.Read more »