Seif Lotfy, the young developer who is very involved in the development of Zeitgeist (in fact, is the person who started it and who is directing), and has long been trying to integrate this manager User Activity that allows to reach a little further when we manage to organize information in our system.
For some time
Lotfy was trying, as we say, integrate into GNOME Zeitgeist Shell , the desktop environment GNOME will see in 3-but we can test several months earlier drafts, and seems to has achieved a good degree of integration, it has announced that the Zeitgeist code is ready and available for all to enjoy with it.
For now, yes, no or anything like GIT branch: have to download the appropriate file and replace the ~ / gnome-shell/source/gnome-shell/js with the directory js of this file. You can download the file mentioned here.
so you can see the result here is the video published by Seif Lotfy own where you can see how the integration of GNOME Zeitgeist Shell: