I'm currently writing my version of a duplicate file finder for Linux. Actually, the text back-end version is finished and works perfectly (it even decides when to do md5 sums and when to do binary comparisons to minimize HD I/O bottlenecking (patent pending! ;)). Anyway, what I am working on is a gooey GUI front-end. I just finished the GTK+ tutorial and am about to have a go at CList, and see what can be done with it (it can accept widgets as items and colors for each line, so that's already better than the hacking you have to do to win32 list types).
Anyone else out theres makes xmms run "xmessage -center -default okay -timeout 5 %s" at every song change? It's cool.
FOAF updates: Trust rankings are now exported, making the data available to other users and websites. An external FOAF URI has been added, allowing users to link to an additional FOAF file.
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If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!