A Zeitgeist extension for GNOME Shell has been released today. The extension is based on the work of GSoC student Akshay Gupta (kitallis) and it requires GNOME Shell 3.2.
GNOME Shell Zeitgeist displays a list of recently used items in a new "Journal" tab on the Activities Overview. The items are organized by type (Audio, Video, Documents, Pictures, Conversations and so on) or by new/frequently/recently used.
Just like with other Zeitgeist-powered tools, the mode Zeitgeist dataprovides you've installed, the more types of files should show up in the "Journal" (available in the Zeitgeist PPA or BZR).
Seif Lotfy says the extension will get some final touches sometime this week as well as a GIT branch. I'll update the post with the GIT branch when it's published.
To install GNOME Shell Zeitgeist, download the extension from HERE, extract it and copy the extracted folder to ~/.local/share/gnome-shell/extensions (or /usr/share/gnome-shell/extensions), then use GNOME Tweak Tool to activate it. The extension should start working immediately, without having to restart GNOME Shell.
To install GNOME Tweak Tool in Ubuntu 11.10, use the following command:
sudo apt-get install gnome-tweak-tool
And remember, you can blacklists files or folders, clear recent Zeitgeist history and other privacy related stuff using Activity Log Manager for Zeitgeist.