This is just a quick post to let you know that the Nautilus Elementary PPA has been updated and it now includes the revamped sidebar for Nautilus Elementary we were telling you about a few days ago.
You can add the PPA (Ubuntu 10.04 Lucid Lynx only) and install / upgrade Nautilus Elementary using the following command:
sudo add-apt-repository ppa:am-monkeyd/nautilus-elementary-ppa
sudo apt-get update && sudo apt-get dist-upgrade