Developed as part of KDE4 was Nepomuk to handle meta data of all kinds on the desktop in a generic fashion regardless of file type as a step towards a semantic desktop. While Nepomuk continues to advance, the KDE developers are now collaborating with GNOME developers to bring Zeitgeist to the KDE desktop too.
After updating to Kubuntu 13.04 with KDE 4.10.5 KMail said that the Semantic Desktop isn't running. Nepomik-Semantik-Services and E-Mail-Indexing were already activated, now I also activated File-Indexing. After that KMail runs without the message. But the find-function <strg><f> in Dolphin doesn't work anymore - and I used it very often before, it worked fine.
You have probably heard of Nepomuk, the semantic desktop technology we've been shipping for a while as part of the KDE Platform. However, so far, you may not have noticed it really doing very much useful for you. So what is this thing called Nepomuk, what can it do for us now and what will it bring us in the future?
Tracker, a semantic data storage for desktop and mobile devices that uses W3C standards for RDF ontologies using Nepomuk with SPARQL to query and update the data, has just reached version 0.14.3.The number of changes in Tracker 0.14.3 is staggering, including bug fixes and new features.