<category>tag containing one or two categories that describe the gadget. Possible values:
<about>The gadget directory automatically picks up changes such as these every so often by looking at your hosted gadget files. Go ahead and update your gadgets, and they will be placed in the categories you want.
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Posted by James Yum, Developer Programs Engineer (Google Desktop Team)
Link - from Google Desktop APIs Blog
$FREE rooftop lounge for Google Desktop developers
Congratulations to Teodor Filimon!
Tip: Embed an SQLite3 database
Tip: Submit better screenshots