Qual versão do KDE você tem? A integração pode funcionar com o mais recente do KDE (KDE 4.8)
O KDE está tendo o Nepomuk. Trueg está blogando sobre a integração entre o Gerente de Atividades do KDE, o Nepomuk e o Zeitgeist: link
Umrelatóriodeerros:
Pacote: libqzeitgeist0
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Source: qtzeitgeist
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Description: wrapper library around the Zeitgeist DBus API for Qt
Zeitgeist is a service which logs the user's activities and notifications,
anywhere from files opened to websites visited and conversations, and makes
this information readily available for other applications to use. It is also
able to establish relationships between items based on similarity and usage
patterns.
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libQZeitgeist is a wrapper library around the Zeitgeist DBus API for Qt.
Homepage: http://zeitgeist-project.com/