A friend told me not much ago about a new cool dock called Docky, which happened to be not yet another dock application, but a new interface for GNOME Do which was released yesterday as part of version 0.8 Alpha (aka 0.7.95). You can see it in action in this video.
Of course, I had to try it out while it’s hot, and I can tell you it is really cool («bye bye, AWN!»; well, in case I decide to use a dock again. I’m more than happy with gnome-panel right now). If you are running Hardy or Intrepid, you can get the alpha from the do-testers PPA. There is currently no amd64 version of the gnome-do package there because of a problem with the PPA, but I got one ready for you which you can get here: gnome-do_0.7.95.1-0~intrepid~ppa1_amd64.deb; note that you’ll still need gnome-do-plugins from the PPA.
Update: I’ve also build a newer version, 0.7.99.1, for 64 bit systems: gnome-do_0.7.99.1-0~intrepid~ppa1_amd64.deb